"Happy Death Day" is a horror-comedy film that blends slasher elements with a unique time loop concept. While it features suspenseful moments and some jump scares typical of horror movies, it is not overly terrifying. The film balances its scary elements with humor and a lighthearted tone, making it more accessible for viewers who may not typically enjoy horror. Overall, it's more about the suspense and the clever premise than pure horror, appealing to a wider audience.

In "Happy Death Day," the killer is revealed to be Lori Spengler, Tree Gelbman's sorority sister. Throughout the movie, Tree experiences a time loop, reliving the day of her murder repeatedly until she uncovers the identity of her killer. Lori's motive stems from jealousy and betrayal, as she feels overshadowed by Tree. The film combines elements of horror and dark comedy, highlighting themes of personal growth and the consequences of one's actions.

As of October 2023, "Happy Death Day" is available for streaming on platforms like Hulu and Amazon Prime Video. You can also rent or purchase it on services such as Google Play, YouTube, Vudu, and Apple TV. Availability may vary by region, so it's a good idea to check your local streaming services for the most accurate options.

As of October 2023, "Happy Death Day 3" has not been officially confirmed. While there has been interest from fans and discussions among the cast and director Christopher Landon about a potential sequel, no concrete plans or announcements have been made regarding its production. The franchise has garnered a loyal following, and there is hope for a third installment, but for now, it remains unconfirmed. Keep an eye on news updates for any changes regarding the film's status.