Italian regulars Daria Nicoladi (a frequent collaborator with Argento) and John Steiner play newlyweds Dora and Bruno Baldini, who along with her son Marco, who was from her abusive former Husband, move into the home she previously shared with her ex.
But despite her new husband's best efforts to be a good step-father, her son still pines for his biological father, despite his abusive nature and the fact that he was presumed dead, after his boat was found abandoned at sea.
But then strange things start happening around the house, like strange gifts and notes turning up, signed by her ex husband. Her son behaves extremely abusively towards his stepfather, even cutting his picture out of their wedding photos. And she has strange dreams about her ex husband coming back as a zombie and trying to kill her.
This raises the question, if this is just abuse trauma, combined with her son rebelling against his step-father, or are sinister supernatural events occurring in the house? Well, I'm sure we can all guess the answer to that one.
Directed by Mario Bava, and also starring Euro-horror regular Ivan Rassimov, the film was renamed "Beyond the Door 2" for it's US release, though was not in any way connected to it. This was a bit of a slow burner, but isn't a bad film over all, which should appeal to Bava fans, or lovers of Italian supernatural films.
It's not quite "The Omen", but is definitely worth a watch.