A young man visits his fiancée's estate to discover that her wheelchair-bound scientist father has discovered a meteorite that emits mutating radiation rays that have turned the plants in his greenhouse to giants. When his own...

Seeking shelter from a pounding rainstorm in a remote region of Wales, several travellers are admitted to a gloomy, foreboding mansion belonging to the extremely strange Femm family. Trying to make the best of it, the guests must...