Mod London and its environs are the setting for this tale of a killer stalking partiers who head out to an abandoned mansion and then try to cover up a murder and solve the crime themselves. Frankie Avalon heads the cast as a cool cat everyone wants to follow, with Jill Haworth as the premier woman in the group. The mystery isn’t particularly difficult to solve, but the ending was somewhat unexpected. Also known as Horror House.

  Mildly recommended. Otto judiciously thinks this movie is OK, but not great.

Movie 352 for 2021.