Is it possible to freecycle love? Modern dating is hard, especially when all you meet are liars, oddballs, men who wear Superman pants and men who live with their mums. So why not date someone who already comes pre-approved? Just because your friend's ex wasn't right for her doesn't mean that he won't be right for you. That's Marnie's new plan for herself and her three best friends, perennially single Helen, recently divorced Rosa and cynical lawyer Ani. Through bad dates and good, the four friends begin to realise that there are advantages to dating pre-screened men...but there can be some serious pitfalls to falling for your friend's ex.