Dexter, a forensics expert for the Miami Police, kills people in his spare time. However, he only murders other killers who escape justice. In this installment, Dexter is just adjusting to life with a newborn daughter when he's tasked with a missing persons case: a seventeen-year-old girl rumored to hang with Goths who deem themselves vampires. As Dexter investigates, he realizes these vampires are actually cannibals with their appetites now set on Dexter himself.