In A Happy Marriage, Jenny and Jim have been married for five years, but their lives have become routine. While Jim fantasizes about his colleague Claire, Jenny is sexually and professionally dissatisfied. For the first time since college, Jenny feels like the fun-loving and adventurous woman she was back then. While an office fapping session is going on, Jim makes the mistake of leaving his door open, which forces him to accept Jenny's proposal, no matter how indecent he thinks it may be. It's game on now!