Episode 4

It's Lucy's big day, and tensions are high. Ever resourceful, Lucy undergoes some last-minute undercover work to prepare for what's to come. She needs her brother-in-law's support, but John finds himself snookered by the latest murder. For once, a crime scene is the last place John wants to be. As the case twists from a whodunit to a howdunit, and an unexpected phone call sends shockwaves, John grows increasingly frustrated at how everyone seems to be playing games.