Best friends Lisa and Felicity think – maybe, just maybe – they finally have everything sorted out in their lives. Lisa is in a happy relationship with her old flame, and busy mum Felicity has managed to reignite the passion with her husband, Pete, after a romantic getaway. But when Lisa walks in on a half-naked woman in her boyfriend's flat and Felicity is left reeling from a shocking discovery, it becomes clear that life is nothing but full of surprises…