Audrey Hepburn stars as Elizabeth Roffe, a strong, intelligent woman who inherits her family's pharmaceutical empire when her father dies in a mysterious accident. The investigation into her father's death reveals a murder in which her closest advisors, family members, and new husband are all suspects. Refusing to sell the company puts her life in danger. Now, her search for truth leads her on an international chase to discover who is trying to kill her and take over her business. She soon discovers that trusting the wrong man can be deadly.