Boogeyman

In a small town, a single father cop and his new partner investigate a series of bizarre deaths, including those of teenagers, at the hands of a disfigured "monster". As the mystery unfolds, they discover that the partner is actually the estranged daughter of the original victim, a reclusive man with a troubled past. The "monster" is revealed to be a demonic manifestation of Cain, the biblical figure who murdered his brother Abel, seeking a new "keeper" to replace the one he killed.