Plot
Lonely television screenwriter Adam lives a secluded life in London. At his tower block, he meets his drunk neighbour Harry, who has noticed him in the building and wants to join him for the night. Reluctantly, Adam declines and sends Harry away.
Adam takes up writing and decides to visit his suburban childhood home, now unoccupied. He encounters his parents, who both died in a car accident decades earlier just before he was twelve, and appear as they did at the age they died. Adam has dinner with them and promises to visit again.
Returning to his flat, Adam encounters Harry by the lift. He finally works the courage to reciprocate Harry's interest. They quickly develop strong feelings for each other. Harry confides how distant he feels from his own family, and Adam opens up about the loss of his parents.
Adam has several subsequent meetings with his parents. During a talk with his mother, Adam reveals his sexual orientation and they discuss it. His mother accepts that Adam is gay, but reacts with concern and slight discomfort. On a later visit with his father, Adam discusses being hurt by his father's silence about the bullying Adam experienced as a child. The two tearfully reconcile and hug.
Later, as Adam and Harry's relationship flourishes, the two go clubbing and take ketamine. Adam admits it is his first time, and, Harry implies that he is a frequent user. During the ketamine trip, Adam finds himself in his childhood bed, this time at Christmas. They hang lights on the Christmas tree together and celebrate happily as music plays. Unable to sleep, Adam gets in bed with his parents and tells his mother about being sent to stay with his grandmother after her death, which his mother laments.
Harry suddenly appears next to Adam, before Adam now finds himself on an Underground train and sees Harry in various places on the train and in the station, but not recognizing Adam. Adam sees a distorted vision of his younger self screaming in the reflection of the train car.
Adam then wakes up in his flat, and Harry tells him he brought him home after Adam started acting strangely. Adam discusses the details of his parents' death to him the next morning, where he reveals his father died instantly, but his mother, with disfiguring injuries lingered for several weeks in the hospital. His grandmother kept Adam from seeing his mother due to her dire condition, which has forever haunted Adam.
Freshly confident in their relationship, Adam takes Harry to his parents' house to meet them - not telling Harry where they are or why. Adam notes that his parents are not present, even after yelling and banging intensely on the doors and windows. Growing concerned for Adam's health, Harry demands Adam tell him where they are and Adam tells him. Harry continues to urge them to leave, just as they both see a faint image of Adam's mother through a window. Harry, horrified and confused, steps back as Adam pounds on the door, breaking a window.
Upon waking up the next morning with his parents, they explain that Harry went home. They tell Adam that in order for him to find happiness, he must let them go and move forward in his life with Harry. They take him to his favourite childhood restaurant, where they ask if their deaths were quick and painless. Adam tells them they both died instantly, a particular relief to his mother, even if untrue. The three tearfully reaffirm their love for each other, after which both parents vanish.
Having accepted the loss of his parents, Adam goes home to see Harry. Entering Harry's flat he notices an awful stench, with ketamine residue on a table and squalor throughout the flat. Adam finds Harry dead in the bedroom, holding the same whiskey bottle he was drinking from the night they met. Adam now realizes that Harry overdosed that very first night after Adam had thwarted his advances. "I was just so lonely."
In the kitchen Adam finds Harry, holding the vodka bottle and in his corpse's clothes. Appearing distraught and embarrassed, Harry wonders why no one has found his body, and Adam reminds him that he has. Adam assures Harry that everything will be all right, and takes Harry back to his flat. The two lie in bed together, tightly in each other's arms. When Harry asks Adam to play a record, Adam remembers the lyrics Harry sang to him the first night they met in the doorway. He starts to quietly sing "The Power of Love" by Frankie Goes to Hollywood.
"I'll protect you from the hooded claw Keep the vampires from your door."
Harry closes his eyes and reflects the same comment he made when they first met. "Everything is so quiet." He relaxes as Adam continues to stroke his hair and whisper the song into his ear. The two fade into a heart shape, before turning into a ball of light, which further joins other balls of light - as if stars in the sky.
