A first-year psychology student awakens in a dark cell, chained and with no memory of his identity except the vague image of his dog, Ruffus. Haunted by a cycle of deaths and resurrections, he must unravel the mystery of his imprisonment and the reason for his selective amnesia. With each death, he develops new abilities and uncovers fragments of a betrayal that left him stranded. As he battles a relentless guard and an invisible poison, he must find a way to escape and reclaim his true identity before the loop becomes his eternity.