Average high school student Millie (Kathryn Newton) finds herself in an unusual, unsettling situation as she inexplicably switches bodies with a notorious, unhinged mass murderer (Vince Vaughn). In a twenty-four-hour countdown, until the change is irreversible, Millie must race to uncover the secret that will return her to her own body. Written and directed by Christopher Landon. Uriah Shelton and Melissa Collazo co-star.