Have you ever taken a wrong turn into Temptation Street...?

Suze has a niggling feeling that her husband Karl's marital sat-nav has taken a wrong turn and led him down the road to temptation. What's a suspicious wife to do?

Mel knows that her sweet, docile husband Joe would never, ever cheat. But when Suze, her sister-in-law, hires a honeytrap to test Karl, the results blow Mel's world apart.

Mel, Joe, Suze, Karl. They're family. They're friends. And they're about to discover whether or not they can navigate those other f-words - fidelity and forgiveness.

Or is relationship misbehaviour much more fun when it's a two-way street?