Natalie York is done with relationships. D-O-N-E. After her latest loverboy hits on her best friend, she's tired of playing games and having her heart broken. From now on, she's keeping things casual.When Nat meets her sexy new neighbor, Aidan Hart, she decides his offer to be friends with benefits is perfect. Soon, Nat discovers perfection isn't all it's cracked up to be. Her ex reveals himself to be a slightly insane stalker, and, even worse, Nat discovers that keeping her heart locked up tight isn't working out like she planned. Either way, she's certain she's in for a bumpy ride.