After spending 18 years in prison for multiple murders, former gunslinger Cain is released and hopes to start a peaceful life. Struggling to shake off his notorious past, he takes up work with a traveling Wild West show, run by a showman named Dan who capitalizes on Cain's infamous reputation. Despite his intention to reform, the road to redemption is rocky as Cain faces prejudice from the public and pressure from Dan to maintain his violent persona. Along the way, he meets a kind artist named Monica, who encourages him to pursue his dream of painting and live a life free from violence.

However, Cain's attempts to leave his dark past behind are constantly thwarted by relentless tormentors and an unforgiving society that refuses to let him change. Dan’s top sharpshooter, known as Billy, sees Cain as a threat and rivals him both professionally and personally, creating tension within the Wild West show. Cain's struggle for redemption becomes a battle against not only external adversities but also his own inner demons. Amidst the turmoil, the story builds toward a climax where Cain must confront his past and make a definitive choice about his future.