Watched this recently. An incredibly bizarre film, yet I genuinely enjoyed it.
The atmosphere, the cinematography, soundtrack & casting are all on point. It's a really creepy and claustrophobic movie.
It follows Richie, a puppeteer, who returns to his childhood home to try and get rid of this creepy puppet he calls 'Mr. Possum', which is basically a mannequin head with spider legs. No matter how he tries to dispose of it (dumping in a river, burying, burning) it turns up in his room the next day.
This is set around a secondary plot about a missing teenager whom Richie was the last person to speak to.