Detailed Explanation
The killer reveal in Sharp Objects is genuinely disturbing. Amma Crellin—the seemingly sweet, roller-skating teenager—murdered both Ann Nash and Natalie Keene. She was jealous that her mother Adora showed attention to other young girls, and she killed them as punishment. The teeth weren't a serial killer signature; Amma used them to create a miniature ivory floor in her dollhouse. The final shot of the series—revealing Amma's dollhouse floor—is one of television's most chilling images.