Fish (2018)

John, dubbed the "kitchen killer" by the media, has chosen his next victim, Karen, a blonde happy go lucky girl packing boxes in her flat; she's moving home. As he knocks on the door to Karen's house he is ready with his excuse for entering the house (he has a parcel to delivery to the next door neighbor), but, Karen is happy to get help with her "packing" and pulls him into the house. As John silently follows her from room to room helping her pack, and waiting on the right moment to strike all he can do is listen to her talking non-stop about her boyfriend; his fish; and the moving. He's called the "kitchen killer" as he uses kitchen implements (in this case a huge cast iron frying pan) to dispatch his victims. But this time he's miscalculated the situation and comes up a cropper.