Sound to me like it's [**Vampires: Out for Blood**][1] (2004) > *Police Officer Hank Holten (Kevin Dillon) is obsessed with his soon to be ex-wife, vampire novelist Susan Hastings. He follows her around and eventually gets reprimanded by his superior Captain Billings played by horror legend Lance Henriksen. While on an undercover assignment he goes to an underground vampire coven that throws parties, sets up orgies then they pounce on their victims. Hank is lured in by the smoking hot Layla (Jodi Lyn O’Keefe) to go to the party. Once in the throes of passion he is attacked. He fights them off and escapes but not before he is bit by the hideously deformed main vampire. He eventually teams up with his ex-wife trying to figure out once and for all how to defeat the vampires, stop himself from turning, while dealing with Layla and other vampires who are trying to welcome him into the family.* > > <Sub><sup>[Horrorphilia: Vampires: Out For Blood (2004) Movie Review][2]</Sub></sup> https://www.youtube.com/watch?v=GJ8TnkIfWnU [1]: https://www.imdb.com/title/tt0375562/ [2]: https://www.horrorphilia.com/vampires-out-for-blood-2004-movie-review/