Newlyweds move into a house that recently saw a woman's murder for a still lost fortune, and the killer's escape. Slowly, through coincidences and ideas from a gossipy neighbor, the young bride begins to question her husband's identity.
A ventriloquist, popular on the vaudeville stage, murders his unfaithful, nagging wife in a fit of jealous rage, but feigns innocence to the police. His dummy, however, has seen all, and keeps no secrets.
A couple of new parents are unable to keep a nanny because none will follow the clinical rules in a new child-rearing book. John, head of an electronics company, has his staff develop a robotic nurse to care for the baby. The humanoid seems perfect, except for its inability to use judgment or give love.
A recently released convict vows revenge on the man that unjustly set him up. He meets a stranger who also has murder on his mind. They agree to kill each other's intended victims, so they can have perfect alibis.
During a stormy night at an old, isolated house in England, a lonely couple a visited by a strange little boy who seems dazed and uncommunicative, yet knows where things are in the house, and ghostly strains of "Long Long ago" can be heard.
Monica is a lonely young girl who is schooled at home by her Uncle Stephen and his housekeeper. When Monica talks about her new playmates Mary and Elsie, her Uncle believes she is just imagining things. He grows more concerned when he himself begins to hear Monica's playmates throughout the house.