Well-to-do couple John and Grace Remington used to be leaders of the Higgins criminal gang, but have gone straight and are now respectable citizens. Their comfortable lives are disrupted when Dan Briggs, a petty street thief and member of their old gang, finds them. Briggs blackmails them by threatening to expose their past, wanting to make use of John Remington's former expertise as a safe cracker.
Remington reluctantly joins Briggs’ criminal enterprise, certain that it would be the one and only time that he returns to crime. However, the home they break into belongs to a friend of Grace's, and she and the Remington children are sleeping overnight there. The heist goes awry, and Briggs vows revenge on Remington.