Colin Mitchell's been in love with Gwen Trueblood for fifteen years. He's finally going to have his chance to win her heart. Gwen gets the shock of her life when she learns her husband David was murdered, not killed accidentally as everyone believed. Unbeknownst to her, he was placed in the Witness Protection program when he was just six years old, the son of a mobster who testified against his buddies in organized crime. Gwen needs answers, but to find them she must go through Colin, her husband's dear friend and the last person in the world she wants to see. Before she married David, the chemistry between her and Colin was electric, causing a painful rift between David and Colin that lasted until David died. As a U.S. Marshal, Colin was in charge of the investigation into David's death, and he's floored to discover he let the other man's killer get away. In the shadow of Boston's mafia underworld, Colin will seek the truth of what happened to David as he fights to win the love of the woman he could never forget. Is there room in Gwen's heart for both of these men? Can she forgive herself for the attraction she felt for Colin when David was alive, or will she continue to blame herself for the good friends' separation?