A wheelchair-bound photographer spies on his neighbors from his Greenwich Village courtyard apartment window and, despite the skepticism of his fashion-model girlfriend, becomes convinced one of them has committed murder.

A former San Francisco police detective juggles wrestling with his personal demons and becoming obsessed with the hauntingly beautiful woman he has been hired to trail, who may be deeply disturbed.

On a family vacation in Switzerland, Bob (Leslie Banks) and his wife, Jill (Edna Best), become friendly with a man staying in their hotel. When the stranger is assassinated in their presence, the vacation turns dangerous. Before dying, the stranger passes along a secret to Jill. Then, to keep the couple silent, a band of foreign assassins kidnaps their daughter. Offered no help by the police, Bob and Jill hunt for their daughter as they try to understand the information that they have.