It is 1961. Teddy Bean takes on his toughest case yet when a mysterious woman walks into his office asking him to find her son. But the assignment proves far from simple, as Teddy and brother John start to uncover a 22-year-old mystery.

At the same time, Teddy’s friend, Inspector Halliday of Scotland Yard, needs his help to solve a series of baffling murders. Charwomen at a London office are being picked off by an unknown assailant, with no apparent motive.

Teddy’s new secretary, meanwhile, is determined to do some investigating of her own and makes a devastating discovery that changes her life forever.