It can be awkward when we are approached by a couple who swear they know us and we haven't a clue who they are. It must be a good deal worse if we accompany these people to their home to 'catch up' and we realise they are a couple of perverted demon worshippers who have some very grisly plans. This is exactly what happens to Andres (José María Guillén) and his pregnant wife Ana (Marianna Karr). Pretty soon their lives have taken on an extraordinary turn for the worse.
Directors Carlos Puerto and (an uncredited) Juan Piquer Simón make sure we're just as unnerved and anxious as the unfortunate pair. True to its 'euro-sleaze' trappings, the foreboding atmosphere is heavily punctuated with lingering scenes of sex that drag things down a little - but developments come thick and fairly fast. It's a tension-filled rollercoaster and a good way to spend 82 minutes.