I guess the story is supposed to be about two men that take turns ensuring that the lighthouse they are stationed at stays operational.

The majority of scenes were either the two if them drinking heavily (to the point where neither of then are sober enough to care) or taking turns pleasuring themselves to the image of mermaids, squids and slimy sea serpents.

Either way, it was hardly worth the time and money I spent. I couldn't wait to get out of there.