Jack and Amanda have been together for years and are still in love - they even still have great sex. Rob and Claire are their oldest friends. In comparison to Rob's messy love life and Claire's trouble with men, Jack and Amanda seem to enjoy a perfect relationship. But it all begins to fall apart when Amanda catches Jack by surprise while he is enjoying some self love. Particularly as he foolishly admits to her that he sometimes does it while fantasising about women they both know (including Claire... ). Amanda tries to laugh it off, but she's jealous and becomes increasingly insecure about Jack's friendship with Claire, interpreting every nuance between them as proof of his infidelity. Jack attempts a reconciliation with Amanda, armed with flowers. As a conciliatory gesture, he throws his adult mags away. All seems to be hunky dory again, but is it really?