 Millionaire Richard Trainor is celebrating the fact that his new calendar featuring twelve nude woman is a huge success. However the party is ruined when Miss January is pushed off a building and later on that night Miss February is knifed to death. Policeman Lieutenant Dan Stoner is assigned to the case and he immediately strikes a friendship with photographer Cassie Bascomb. While Dan investigates the case Cassie is attacked. What connection is she to the case and will the killer be caught before he/she reached Miss December.