The Truth about Love plot
"How far would you go to test your man? How far would you go to keep him?"
Alice is happily married to Sam. On the eve of Valentine's Day, Alice receives a Valentine's card. The anonymous sender is Sam's best friend Archie, who is secretly in love with Alice. Alice is convinced that the card comes from her husband, but her cynical sister Felicity doesn't believe it. Under the influence of alcohol, Felicity prompts her to send Sam an anonymous Valentine's Day card to see how he reacts. To Alice's anger, Sam keeps the map a secret. Alice then devises a plan to test her husband by pretending to be a silent admirer. What starts as a harmless joke, turns into phone sex and secret encounters...