A man wakes up in a car crash with no memory of who he is or how he got there. His confusion deepens when he discovers that every twelve hours, he involuntarily shifts into the body of a different person. Each time he inhabits a new identity, he must navigate deadly situations in an unfamiliar world. In his search for answers, he encounters a mysterious woman who seems to recognize him despite his many identities. The woman holds the key to his forgotten past and offers cryptic clues about a sinister organization's involvement in his plight.

As he moves through various lives, each persona reveals fragments of a conspiracy surrounding illicit drug operations and betrayal. The man desperately tries to piece together these memories, haunted by visions of shadowy figures and threats that feel eerily familiar. While working against the clock to maintain his sanity during each transition, he must also avoid being captured by menacing pursuers who appear as determined to uncover his secret as they are to eliminate him. With each shift bringing him closer to the truth, he grapples with fragmented memories and strives to reclaim his identity before time inevitably runs out.