Erosan | Points

the movie is about a house of a couple being stalked by someone and the stalker installed camera inside the house, end up with both of the couple dead and i remember listening song the cat came back.

You sure it was his arm and not his ass? If it was his ass, then my suggestion is: "Masterminds" (2016) https://www.imdb.com/title/tt2461150/ Zach Galifianakis is shot in the ass, he freaks out, Kristen...