Maxie Shannen and Savannah Trimmel are more than best friends. They're sisters, bound by a tragic past and an unbreakable bond. When Isaac, Savannah's boyfriend, falls victim to an act of violence that leaves him with no recollection of the prior eighteen months, both women tend to his recovery. For Savannah, it's simply an attempt to care for the man she loves. For Maxie, it's a chance at redemption. She tells Isaac nothing of the passionate secrets they'd been keeping from Savannah, nor of the unyielding feelings that nearly consumed them both. But as the fragile wall obstructing Isaac's memory begins to crack, hidden truths slip through the fissures, and Maxie will once again be faced with an impossible choice-- her loyalty, or her heart.