Plot
An old and wealth recluse named Silas Blackburn (Mario Majeroni) lives in his mansion and is cared for by his long-time butler as well as his ward, Katherine (Olive Tell). During a stormy night, Katherine finds Silas extremely agitated and nervous. The old man accuses Katharine of colluding with his wastrel grandson, Robert (James W. Morrison), to steal his money. Katharine denies his allegations and declares any romance between her and Robert long dead, but Silas threatens to remove her from his will.
Katherine retreats to her room but is unable to sleep. She eventually goes back to find Silas and sees him about to retire in an abandoned room. Katharine begs Silas not to spend the night in the room because it had not been used since three generations of Blackburns died sleeping there. Silas shrugs off her concern saying that he is too afraid to sleep anywhere else. Katharine leaves Silas and returns to her room. Later that night, a restless Katherine returns with the butler and finds Silas dead with a pin-like wound at the base of his skull. The two conclude the old man was murdered.
All while this is happening, Robert is drinking heavily at an actress's apartment. Carlos Paredes (Ivo Dawson), a family friend, urges him to sober up and go to his grandfather's home where he has an appointment. Unable to convince Robert to leave, Carlos departs alone while the young man remains with Maria (Peggy Parr), the actress. Robert wakes up the next morning in a derelict farmhouse near his uncle's mansion.
While Robert pulls himself together, a detective and coroner, Dr. Groome (Charles McKay) arrive at the mansion to investigate Silas's murder. The detective sharply interrogates Katherine and identifies Robert as the prime suspect. Just then, a disheveled Robert appears at the door and is questioned about his activities during the previous night. Robert explains that he was with Maria all night, but Carlos refused to support his alibi. All the people present begin to wonder if Robert had something to do with his grandfather's death. Even Robert, who cannot remember how he ended up in the farmhouse, questions his own innocence.
The detective continues his investigation and cannot understand how the murder was committed in the abandoned room with Silas securely locked inside. He decides to sleep in the room. Just before he retires to the room, he boasts that he will have enough evidence to arrest the killer in the morning. The detective is found dead in the room the following morning.
A few days later, after Silas is buried, a new detective is brought in to investigate what has grown into a double homicide. Meanwhile, Katherine learns that Carlos has been secretly communicating with Maria. She also learns that the two are planning a clandestine meeting, so she decides to spy on them. Robert spots Katherine skulking through the woods and begins wondering if she killed Silas. He keeps his suspicions to himself and announces to everyone that he has decided to spend the night in the abandoned room to uncover the truth behind the murders.
Instead of sleeping in the abandoned room, Robert conceals himself near a window and keeps watch over the bed. Late in the night, he sees a hand reaching through the wall at the head of the bed. Rushing forward, he seizes the arm and discovers it belongs to Katharine, who had entered the room through a secret door. Robert accuses her of the murders, but she protests and scolds him for believing she would have anything to do with such a crime.
The next night, Silas is found sitting in his favorite chair in front of the fireplace. He refuses to explain where he has been and scoffs at the suggestion that he was ever dead at all. Confusion ensues and the coroner suggests they excavated Silas's grave. When this is done, the casket is found to be empty. Suddenly, Maria arrives at the Blackburn mansion. At the sight of the actress, Silas draws a pistol from his jacket and shoots himself.
More confusion ensues, but the butler begins to tell a story that made sense of what just occurred. The butler explains that Silas had a twin brother in South America. At some point, Silas had stolen a vast sum of money from his twin and fled. The butler confessed that the twin had come to the house the night of Silas's death, and threatened to expose the old man as a thief and fraud. He recounted that the brothers finally agreed that the twin should stay overnight in the abandoned room to settle his feud with Silas the following morning. While Silas was at the door plotting his next move, Katherine had arrived and interrupted his scheming. He had intended to kill his twin and hide the body, but he was forced to let the body be mistaken for his own after he told Katherine that he was spending the night in the abandoned room.
The butler continues by explaining that Maria, the actress, was actually the twin's daughter, and that she had known that either her uncle or father was murdered. The reason she had been communicating with Carlos (who was also her secret lover) was that she wanted to find out if her was father was dead. Silas, the butler concludes, had killed himself because he feared Maria would expose him.
The mystery now revealed, Robert promises to mend his way and rekindles his romance with Katharine. [2]
