22 movies about obsession, ranked by creep factor

It's one thing to be so deeply in love with someone that you like all their pics on Instagram, but it's a whole other thing to start tracking their whereabouts via geotags. That, my friends, is called stalking. And yet, some romantic movies, like Twilight, can blur that line—even rom-coms like Love, Actually are guilty—which might be why so many of the best movies about obsession are based in romantic relationships.

In fact, stalker movies rarely start out as such. It's only when the characters that start as friends and lovers turn into tormentors that movies about obsession really become stalker movies. TLDR; the best movies about obsession need the best, and most terrifying, stalkers. It's in this spirit that I present to you a list of the best movies about obsession, ranked by creepy factor. May the best stalker...uh, win?

22. Fifty Shades of Grey

Christian Grey (Jamie Dornan) is a stone-cold fox, but cold is the operative word. Sure, he's in love, but he's also possessive, obsessive, and truly just plain weird about his feelings for Anastasia (Dakota Johnson). Don't let his hotness distract you from his sociopathic red-flag behavior. The only reason he's so low on the list is because, unlike many other movie stalkers, he doesn't have serial killer potential.

21. Chloe

Erotic thrillers are all about obsession, and Chloe is no different. The film starring Liam Neeson, Julianne Moore, and Amanda Seyfried follows a woman (Moore) who hires a young escort (Seyfriend) to seduce her husband (Neeson), but finds herself tangled up in a web of lies instead.

20. Twilight

Edward Cullen (Robert Pattinson) may not be a full-blown sociopath with violent sexual fantasies, but! His bad-boyfriend-alert red flags include: kidnapping, prohibiting his girlfriend from seeing her friends, and watching her sleep every night. That said, those stalker vibes are easily eclipsed by Robert Pattinson's cheekbones and Taylor Lautner's abs.

19. Do Revenge

Unlike most movies on this list, Do Revenge isn’t an erotic thriller, so it’s not so much about romantic obsession as it is about, well, revenge. A campy high school dramedy, Do Revenge follows high school seniors Drea (Camila Mendes) and Eleanor (Maya Hawke) as they form an alliance to take down their respective nemeses. But sometimes revenge isn’t all it’s cracked up to be, especially if you're the target. Giving away too much of the obsession plot point would ruin the twist of this movie, but I'll just say it's pretty diabolical.