A werewolf loose in Los Angeles changes the lives of three young adults, who, after being mauled by the beast, learn they must kill their attacker if they hope to change their fate to avoid becoming werewolves too.
This movie contains 29 potentially triggering events.
Yes, one character loses their head. It is quite detailed, bloody and graphic.
Also, if the imagery is bothersome, be warned at least one mannequin is decapitated as well.
If one doesn't want to see mannequins be warned there are quite a lot of them in the movie. Some of celebrities. Some get knocked over and one loses a head.