House on Bare Mountain

In this 1962 film, a girls' school in the mountains becomes the target of an unexpected invasion by three iconic monsters: the werewolf, Dracula, and Frankenstein's monster. The creatures, who are also undercover spies, are determined to disrupt the school's nudist activities, which include sunbathing, nude exercises, and nude art classes. Character Granny Good (Bob Cresse) likely plays a role in this bizarre confrontation, while the film also features a labor union and some humorous moments involving a dictionary and a shower.