Plot
Five married men share ownership of an upmarket loft, which they use for discreetly meeting their respective mistresses. When the body of a murdered woman is found in that loft, the men begin to suspect each other of having committed the gruesome crime, as they are the only ones with keys to the premises. Through flashbacks, which are intertwined with scenes from the present, the story is unravelled.
The five men are:
- Vincent Stevens: architect and designer of the building where the loft is situated. Married to Barbara and father of their children, he initially suggests the five friends use the loft as a private oasis. He is set up by the other men to be accused of the murder.
- Dr. Chris Vanowen: a psychiatrist married to Allison and half-brother to Philip. Chris and Philip have a half-sister, Zoe. He is the most reluctant of the men to loft idea and the last to accept a key; Chris eventually does so because he is attracted to Ann, who eventually becomes his mistress. Ann warns Chris not to fall in love with her because she is a prostitute, and he gives her his key as proof he does not use the loft with other women.
- Luke Seacord: married to Ellie, who is an insulin-dependent diabetic. He discovers the body in the loft and initially calls Vincent and the others over. The police later insinuate that Luke is attracted to Vincent, and it is Luke who records the men's activities in the loft without their knowledge.
- Marty Landry: heavy drinker and an obvious lecherer. He and his wife Mimi separate when a woman Marty slept with on a business trip shows up at his home.
- Philip Williams: half-brother to Chris as they have the same mother and recently married to Vicky, the only daughter of a wealthy property developer who is also Philip’s boss. Philip is a drug user who grew up in a dysfunctional household with his abusive father and is very protective of his younger sister Zoe. He warns the other men off having sex with her.
The murder victim is Sarah Deakins. Vincent, Luke, and Marty meet her at a bar and though both Vincent and Luke are attracted to her, she hooks up with Vincent and becomes attached to him. At a party Vincent and Luke are attending, Sarah threatens to tell Vincent's wife about the affair in a bid to break them up, but she is dissuaded from this by Luke. She seemingly tries to commit suicide at the loft by taking pills with champagne and is discovered by Luke, who calls Chris, Marty and Philip, showing them a note left for Vincent. The note reads "See you in the next life"; this note is taken from the loft by Chris.
The men were motivated to set Vincent up by Luke, who showed them DVDs of Vincent having sex with Marty's wife, Mimi; Chris's prostitute, Ann (whom Vincent had paid to allow Chris to seduce her, so that he would take a key to and use the loft), and Zoe, Philip and Chris's younger sister. Three of the men leave to set up their alibis, with Philip remaining at the loft to stage the scene. He takes some cocaine and cuts Sarah's wrists, using her bloodied finger to write a Latin phrase similar to that in her suicide note. He then handcuffs Sarah's right hand to the bed.
Over the course of the movie, as the five men discuss what to do with the body, Luke, Chris, Marty, and Philip drug Vincent, strip and handcuff him to the body on the bed. Before Vincent passes out completely, Chris tells him about Sarah's suicide and the contents of her note. While being questioned by the police, Vincent tells them of the setup, but they do not believe him as the only prints found were Vincent's and Sarah's. They also have the DVDs of his sexual exploits, except the ones with Mimi, Ann, and Zoe; they won't believe him that Luke made the videos and the DVDs of the other men were not found. The police also mention that all four men have alibis for that morning — Chris and Luke were seen together having breakfast, Marty was at his office, Philip has an alibi from his father-in-law (who was blackmailed with information about his own cheating, information Philip had because he knew Vincent used that same information to blackmail his father-in-law to be awarded a contract on a project).
Releasing Chris from interrogation, Detective Huggins tells him that Vincent has been arrested for murder; he is surprised as he thought Vincent would only be implicated in Sarah's suicide. The detective further states that the pills did not kill Sarah, that her wrist cuts were not self-inflicted, the prints on the knife were Vincent's and they didn't find a suicide note. The surprised Chris thanks Huggins and leaves. Outside the police station, he reaches into his jacket pocket, only to find that the suicide note Luke gave to him is gone. He then walks to the loft and confronts Luke about the missing note. After initially denying that he had it, Luke leads Chris to the note, which was in the garbage. Chris looks at the note and wonders why Luke would get rid of the only evidence of the attempted suicide, speculating that Luke, not Sarah, was the author of the note. Luke then tells Chris everything; he framed Vincent, because he was attracted to Sarah himself, and felt that Vincent stood between him and Sarah.
We see that Luke had gone after Sarah the night she almost told Vincent's wife about the affair. He told her that Vincent was using her and not worth it, and that he could treat her better. She rebuffs him, saying she felt nothing for Luke. Hurt, Luke turns around to find that his wife saw him talking to Sarah. When Sarah returned to visit Vincent at the loft, Luke showed up and drugged Sarah, trying to kill her — out of "love" — with an insulin overdose. He then staged the suicide with the pills, champagne bottle, and suicide note. Chris then tells him that Vincent is being charged with murder as Sarah hadn't been dead when they left her with Philip. Luke then states that technically it was Philip who killed Sarah and that he will clean the situation up. When Chris says no more cleaning up, Luke pulls out a kitchen knife and threatens him. Sirens can be heard and Chris says he called the police, told them everything and that it is over. He and Luke struggle, and he gets the knife from Luke. Luke tells Chris to tell Ellie and his family that he's sorry; he then jumps from the loft's balcony, killing himself.
Six months later, Mimi and Marty are reconciled, Philip is facing trial for manslaughter, and Chris is divorced, sharing custody of his children. He runs into Ann after leaving a bar, and she asks if he needs the loft key, that he had given her for them to meet up. Chris mentions the key would not work as Vincent now lives at the loft, since it was all his wife left him with from their divorce. Chris mentions that he heard Ann left the city councilman, one of her clients as a prostitute, and she replies that he was not the only thing she gave up, implying that she's no longer in that line of work. Ann asks Chris if he would like to grab a cup of coffee with her as the scene fades away.
