Tessa and Marcus went on holiday to save their marriage. Instead they nearly lost their son. In that fatal moment of inattention a stranger stepped in and now Dave Jepsom is in their lives. They owe him but he seems to want everything. He's on the streets they walk down. He's at the office where they work. He's knocking at their front door. And he's exposing secrets they would do anything to hide. A hot beach. A young family on holiday. A fatal moment of inattention ...