In the mining town of Harmony, a drilling accident is caused by the son of the owner Tom Hanniger, and the mine collapses burying six miners alive. The rescue team finds only Harry Warden alive but in coma and the other miners murdered punched by his pickax, and they conclude that Harry killed them to save oxygen for himself. On the Valentine’s Day, Harry awakes from the coma in the local hospital, and he kills twenty-two persons, including a group of teenagers that are partying in the mine. Harry is killed by the deputy but the only survivors are Tom Hanniger, his girlfriend Sarah, their friend Axel Palmer and another girl. Ten years later, Tom returns to Harmony after the death of his father decided to sell the Hanniger Mine, and finds that Sarah has married Axel, now the local sheriff, and they have a son. On the Valentine’s Day, Harry Warden also returns seeking revenge against those that had escaped from his pickax in the past, and Tom is accused by Axel and other locals. Written by Claudio Carvalho, Rio de Janeiro, Brazil