If you watch this film alone at night you'll find it pretty scary. Especially the knocking on the door. It's hard to know which door it is. Is it the door in the film or is it your own? The knocking starts again. It's quite frightening. Hang on to your seat.
There is little dialogue which is a pity because it's hard to understand what's happening. Sure, we know it's night time and there's a young couple making love in a house but who are these masked strangers determined to enter and why? It happens that the couple have an old shot gun on an upper shelf which the man uses in self defence. The intruder collapses with a nasty wound to the head. If you are of mild temperament you may wish to throw up when the camera gives you a close-up of the wound. Shattered flesh is not pretty.
Apart from that incident most of the time is spent searching for shadowy figures among the trees outside. The couple try to escape in their car but the car is rammed by another which appears out of the darkness. Another unexplained incident.
When the girl is left alone in the house she seems to spend an interminable time creeping around with a carving knife in her hand. Stupidly she throws back the curtains and there's a threatening face at the window. Screams and more screams.
In the end a couple of school boys passing on their bikes find the couple bound and bloodied on the floor. One of the boys moves forward to touch the woman. What better way to end this creepy film than another loud and terrifying scream?