George Davies is mild mannered store-keeper who makes a pass on the town floozie. When she rejects him, he accidentally kills her. Unfortunately, the girl's boyfriend is arrested for the crime and put on trial. When George is appointed to the jury for the case, he finds a way to get the boy off without having to confess his own guilt. George manages to get the boy off, but the decision enrages the townspeople who boycott George's store and treat him like an outcast. The townspeople also hound the boy, who commits suicide because he cannot convince anyone that he is not a murderer. Eventually George confesses his crime to the police, but they refuse to believe him. They think he has suffered a nervous breakdown because of the harrassment and the boy's suicide.

The mentally ill Dr. Fenwick is a supporter of the therapeutic value of role-playing in psychiatry. He kills the head of the sanatarium where he is a patient and assumes the man's identity. He locks doctors and nurses in the attic and gives their responsibilities to other patients. Things run rather smoothly until Natalie Rivers, the neice of the now dead head of the sanatarium, arrives for a visit. Since she has never seen her uncle before Fenwick is able to trick her into thinking that he is her uncle. Natalie discovers her real uncle's body and, not knowing who he is, asks Fenwick to call the police. He pretends to call the police and a patient pretending to be a detective shows up to look things over. Eventually Natalie discovers the staff locked in the attic. Fenwick tries to prevent her from telling anyone, but he is stopped by the police.

Mrs. Logan calls Sheriff Ben Wister when she begins to believe that her neighbor Harry Jarvis killed his wife and buried her in his back yard. She notes that Harry has been acting strangely. He has been digging in the yard all night and has been drinkinf beer all day. She also notes that Mrs. Jarvis's annoying little dog has also gone missing. When the police interview him, Harry claims that his wife left him for another man. He also claims that his wife left her dog with him and that it died after an illness. The sheriff is unconvinced by Harry's explanation and gets a search warrant to dig up his back yard. When the police start digging they find a dead dog and believe Harry's story. Later, Harry visits Mrs. Logan who is in fact his secret lover. Harry did kill his wife and he and Mrs. Logan bury Mrs. Jarvis's body where the dog was once buried. They think that the police would never bother to check the dog's grave again.