When his late mother appears in a vision and tells him to go to Bucharest, Charlie (Shia LaBeouf) immediately boards a plane across the Atlantic. But when he meets a fellow passenger, Charlie finds himself with another promise to fulfil. Charlie does so and falls head over heels in love with Gabi (Evan Rachel Wood), a beautiful musician. However, a vicious gangster (Mads Mikkelsen) has already laid claim to Gabi, and has no intention of letting her go. Determined to protect her, Charlie enters into the hallucinatory, Romanian underworld filled with violence and, strangely enough, love.