A golden summer, and six talented friends are looking forward to the brightest of futures - until a daredevil game goes horribly wrong, and a woman and two children are killed. 18-year-old Megan takes the blame, leaving the others free to get on with their lives. In return, they each agree to a 'favour', payable on her release from prison. Twenty years later Megan is free. Let the games begin . . . Richard & Judy bestseller Sharon Bolton is back, with her twistiest thriller yet.