讲述一个因杀害自己女友而在监狱里度过25年的连环杀手Antonio Frau的故事。他从监狱释放出来后，从远方的亲戚处继承了一间老旧的汽车旅馆，他将此视为一个契机，决定着手为那些失去生存意志的人解除痛苦。他将受害者带到旅馆的6号房间，进行“净化”工作；与此同时，他继续和妻子过着日常生活。一个失误导致他被捕了，而同时令他名声远扬……H6 tells the story of Antonio Frau, a serial killer set free after serving 25 years in jail for the violent murder of his girlfriend. After inheriting and old motel from a relative he never knew, he sees this as a signal and takes to his holy task of relieving the grief of those who have lost the will to live. He takes his victims to room Number 6 in the motel where he 'purifies' them, while, at the same time, continues his everyday life next to his wife. A mistake leads to his arrest, and his plan to become rich and famous takes relevance.
