Hän tietää että olet yksin

This is an obvious take-off of Halloween, so much so that John Carpenter could have sued over the soundtrack. Yet it's surprisingly better than all of the other take-offs that came about from 1978 through the early 80s. The one thing that this has over the others is competent production values, a fairly literate story, no less than mediocre acting, and some of it actually good, and a regular human as the killer. You know, the kind that can actually be killed too, and doesn't wear some version of a mask. We can all thank Hitchcock and Psycho for the knife/slasher sub-genre, and thank Tobe Hooper and Leatherface for the masked maniac. The killer in this one is a maniac but no mask is used, what a relief. So, anyway, you'll find a good amount of entertainment in this one if you like this particular type of horror, and if you don't then better to not get it because it's pretty specifically horror, and not a crossover film.