A filmmaker is invited to Marty's house, a collector, and something is a bit off. Marty has a house filled with collectible items - things of all sorts. Old, weird, rare, useless things, you name it. He loves his belongings, but he might have to consider getting rid of them.
To put "Marty's House" in a genre is kinda killing the point of the movie. The filmmakers themselves have chosen to go with putting it under the banner of the classic cinéma vérité style, which might be a smart move considering it's not as clear. And "Marty's House" is far away from clear. Part documentary, part experiment, part... horror? Not outright horror, but there's definitely something there.
It essentially is a documentary, but it starts out with the filmmaker arriving at a collector's house - Marty's house - and then passing out after a strange encounter in the bathroom. Marty then drags her out to the back of his house and sits next to her in a chair and drinks blood. All shot in slow motion. We then see him undress and showing off his wiener while singing Judas Prist's "Breaking the Law". It eventually jumps to a very traditional styled documentary about Marty and his large number of items in his house. And more importantly, about him selling items off so that he can start over. He has to sell them for cheaper than they are worth, but he feels it's worth it to finally get rid of it all and get away from there.
It's not clear what the filmmaker wanted with this short film, but that's sort of the reason it exists too. It's an unusual trip that some might not be interested in taking. It's something I like having seen, but I can't say that I really liked the movie as a hole. It's more interesting to see Marty's attempt to sell his things than the semi-horror experiment we're treated to in the beginning. Ultimately it leaves me unimpressed even though the mixing of styles is a pleasure on its own terms. It raises a lot of questions, but it answers none of them.
"Marty's House" is a play on genres, a sort of undefinable experiment. It might not be a great watch but you can't deny that what Ginnetta Correli did was interesting. I don't think it's a style that would work on several projects, and I have no idea what the filmmaker has done before or since, but it's here for you to experience. Take from it what you will, even if just opening your eyes to something very free.