While Jethro and the prostitute are engaged in a BDSM session, Norval steals the motel keys and a check spindle, slashes Jethro's tires, then attempts to sneak into Jethro's room through an adjoining room. Upon spotting him, the prostitute holds Norval in a headlock while Jethro stabs him several times with the spindle, then leaves. The prostitute is horrified that she is an accessory to Norval's death, but Norval stirs and exits the motel, finding Jethro has crashed his car into a sign that has partially decapitated him. Jethro reveals to Norval that his mother was a prostitute who both Brian and Jethro slept with before Norval stabs him in the exposed part of his brain with the check spindle; Jethro exhales "Arthur!" before collapsing dead. Norval, wounded but alive, walks on foot back to the house where he left his father and lies down next to him on the lakeside. Norval apologizes to his father for never letting his mother get over him, and Brian weakly touches his son's hand. On the review aggregator website Rotten Tomatoes, the film has an approval rating of 86%, based on 94 reviews, with an average rating of 6.89/10. The website's critics consensus reads, "Bloody horror with barbed wit, "Come to Daddy" anchors its brutal violence in a surprisingly mature approach to provocative themes". On Metacritic, the film has a weighted average score of 64 out of 100, based on 20 critics, indicating "generally favorable reviews".