Both Gein and Norman Bates were small-town loners with serious Oedipal complexes. In Alfred Hitchcock's Psycho, we see Gein as Bates, the creepy murderer obsessed with his late mother Norma. While Gein was only known to be responsible for two deaths, Bates killed at least six people. Bates is known to have exhumed his mother's body — Gein robbed many graves, especially looking for women who looked like his mother.
Psycho, as we know, would inspire many other projects, including the series Bates Motel with Vera Farmiga and Freddie Highmore.