A psychiatrist becomes obsessed with a tragic woman who is being held a virtual prisoner by her crazed elderly husband, who views her as a possession. However, the doctor's well-meant intervention leads to deceit and madness, culminating in a violent confrontation. Murder mystery, starring Hedy Lamarr, George Brent and Paul Lukas.

In 1903, Doctor Huntington Bailey meets a friendly older lady during a train trip. She tells him that she is going to visit her brother Nick and his lovely young wife Allida. Once in New York, Bailey hears that his train companion suddenly died. Shortly afterward, he meets the strange couple and gets suspicious of Nick's treatment of his wife.