Henry likes to kill people, in different ways each time. Henry shares an apartment with Otis. When Otis' sister comes to stay, we see both sides of Henry: "the guy next door" and the serial killer.
This movie contains 28 potentially triggering events.
SPOILERS . . After Otis is killed, Becky sobs uncontrollably and sounds/looks like she is having an anxiety attack. She continually says "I am scared" and "what are we going to do"