Kid Allison, a rising star in the boxing world, embarks on a European tour to build his reputation. Despite dominating his opponents, a fateful match against Gunner Hanson in London marks the beginning of his downfall. Allison, in a brutal and bloody fight, unintentionally kills Hanson, leading to profound guilt and a haunting that overshadows his career.

Haunted by Hanson's death, Allison's next fight against Young Slade becomes a psychological battleground. As Allison gains the upper hand, he is suddenly overwhelmed by the eerie and ghostly voice of Hanson, vowing to defeat him from beyond the grave. This supernatural occurrence distracts Allison, allowing Slade to knock him out. This incident profoundly affects Allison, driving him to retire from boxing, haunted by the voice and his conscience.