Beth's party for her husband Tom is interrupted when the police arrest him for the murder of his ex-colleague. Beth secures Tom's release with an alibi but, just as the couple reconciles, she finds unsettling proof of her husband's double life.

During a school event, the Fairchild's past scandalous sex life becomes public, while DI Edgeworth goes rogue to gather evidence against Tom. Beth makes a shocking discovery and plans her escape.

A year later, Beth marries Adam amidst police presence and high tension. A secret encounter with Tom prompts Beth to discover the truth behind the murders and take drastic measures in order to protect her family.