Cameron and Lewis Larsen are identical twins living normal, suburban lives … until their mom and dad kill two uninvited guests at a neighborhood barbecue and then disappear. Following cryptic instructions their parents left behind, the twins make their way to a small hotel in Edinburgh. Too conspicuous as twins, they hide by pretending to be one person, each gathering clues on alternate days. The closer they get to the truth, only one thing is clear: Someone is following them. Will they uncover their parents’ secrets before their own is discovered? With no idea who’s after them, or why, the twins race to discover the truth about their parents. And, in the process, they learn a lot about themselves – and the unbreakable bond they share.