Kate Sullivan has a beautiful home, a job she loves and a handsome fiance: all she'd ever dreamed of since getting sober and painstakingly piecing her life back together.

But a chance encounter with her old best friend Becky threatens Kate's newfound and fragile happiness. Kate remembers nothing of their last drunken night out, the night Becky broke off their friendship without warning or explanation.

With Becky back in her life, Kate is desperate to make amends for the past. For the closure she craves, Kate needs to know what she did that ruined everything. But what if the truth is worse than Kate could have imagined?