Warning: This post contains major spoilers for You season 4, part 1!You season 4, part 1 reveals the Eat The Rich killer, but there were some clues that Rhys Montrose was the killer all along. In You season 4, Joe isn’t doing the stalking and killing for a change. Instead someone else is killing elitists around him. To make matters worse, the killer also knows his identity and texts him from a disappearing message app. It is a clever twist to have Joe feel what it’s like to be watched, but ultimately Joe must decide how much he really is like Rhys Montrose.

https://screenrant.com/you-season-4-killer-clues/