O Mutilador

A man goes psychotic as a result of an event that occurred a decade earlier, where his son accidentally killed his wife when cleaning a gun. The boy, now a teenager, is invited by his dad to take a break with his friends at his father's seashore house. Once there, the homicidal dad starts picking them off.

You would have to say that The Mutilator is a pretty run-of-the-mill mid-80's slasher film. Like most, it has almost no story and the narrative is merely a means of linking one gory murder after another. But it does seem to me like this is one of the slightly better examples of the genre from that time in that the carnage is quite varied and it doesn't really drag too much. It knows what it is and just sticks to genre conventions but does so with enough over-the-top violence to ensure it never gets boring. There are several memorable death scenes sprinkled throughout and overall it's passably good stupid fun.