The summer's most talked about wedding and then breakup. Hugh Hefner is one of the world's most famous bachelors, and his Playmate girlfriend Crystal Harris were all set for their lavish fairy-tale wedding at the Playboy Mansion in L.A. in June. But after months of planning and just days before the high-profile event, Crystal made the shocking decision to not marry Hefner. As news of the breakup quickly broke around the world, questions, speculation and rumors of scandal began to spread. In this one-hour special, Lifetime takes an intimate look at the events and conversations that led up to the breakup, including new and exclusive interviews with both Hefner and Harris about the end of their relationship.