Two friends, on the brink of midlife crisis, embark on a no-strings attached love affair with a major twist: they will share just one lucky man between them."Can I help you?" asked someone with a Yorkshire accent. "Possibly," answered Fiona, unsure as to what she was really looking for in the whip and handcuff section.When old school friends, Angie - a care home worker and mum of two - and Fiona - who has clocked up multiple failed marriages - bump into one another at a tipsy timeshare evening on a Thames barge, they bond over their respective boredom with life. Stale marriages, overbearing families and previous hopes and dreams now tragically confined to the top shelf, they crave the romance and excitement that their youth and all the movies had promised them (rather than the timeshare apartments on offer). Buoyed by the fast-flowing bubbles, a thrilling plan for sexual misadventure is hatched. Inspired by their surroundings, Angie and Fiona agree that while anyone can timeshare an apartment, timesharing a lover would be much more interesting. After placing an advert detailing the position available, men of all ages, backgrounds and nationalities - from an opera singer to a pickpocket - flock to London Zoo, the ladies' chosen venue for auditions. One candidate in particular catches their eye, but may prove to be too close to home - and their husbands. To make sure they play fair, don't develop feelings or go off piste completely, Angie and Fiona agree upon and sign a set of rules. But in affairs of the heart rules are often broken.