Obstetrics director Harrison discovers his future daughter-in-law Lynne has syphilis. She responds by assaulting, humiliating, and forcing him to kneel before destroying his trophy. Protected by her wealthy fiancé, Lynne terrorizes everyone. Harrison patiently waits, then exposes her affairs, infection, and lies at a birthday banquet and hospital ceremony. Lynne and her lover turn on each other, leading to murder. She ends up in prison, where justice finally prevails.