Bored with dull divorce cases, ex-cop-turned-private-detective Erika "Colt" Coltrane decides to investigate a series of eerie murders that has been kept secret thanks to police corruption. Sooner than expected, though, she finds herself embroiled in a conspiracy involving a small vampire cult led by Vanessa, a mysterious figure convinced that drinking Nick Payne's blood (Colt's client) will turn her vampire symptoms into superhuman powers. Colt then not only has to rush and do her best detective work in order to solve the murders but also to save Nick and save herself, ultimately stopping the killing rampage of the vampires.
