Andrea Bartz

When Kelly's relationship ends, she doesn't know who to turn to. Until her friend Sabrina offers her a spare room for the summer. Unlike Kelly, Sabrina has it all. A glamorous career. A handsome, high-powered husband. And a huge house, complete with a swimming pool.

At first, they share a friendship. But one wine-fuelled evening, Sabrina and Nathan make a confession: they want to open up their marriage. It's an irresistible prospect. The ultimate rebound, with no strings attached. Until Kelly makes a discovery: Sabrina and Nathan have done this before. And the last woman to share their bed is missing...

On holiday in Chile with her best friend Kristen, Emily is having the time of her life. Until one night, she finds their hotel suite covered in blood. Kristen claims a backpacker attacked her. She shouted, but no-one heard. She struggled, but he was too strong. She had no option but to kill him. With no evidence of the assault, Emily must help her hide the body. . . Back home, Emily tries to forget what happened, but a surprise visit from Kristen forces her to confront the events of that night. As the walls close in, Emily asks herself: can her closest friend be trusted?