A popular spring break destination, the Mexican border town Matamoros is the site of "brujería" murders carried out by a drug-smuggling clan.

A zealot styles himself a prophet whose scheme to take over a prominent church relies on extortion, money laundering and murder.

In 1981, more than a dozen women in Chicago are kidnapped, mutilated and murdered, with trophies severed from their bodies by the vicious Ripper Crew.

A flamboyant, elaborately ritualized sect claiming to be inspired by the cosmos and the Knights Templar becomes a lucrative international scam.

Obsessed with a fantasy role-playing game, a Kentucky youth who believes himself to be a 500-year-old vampire kills a friend's parents in Florida.

Led by a young woman who believes Satan is her father, socially outcast Goth teenagers murder a religious family and steal their minivan.

A youthful romance ends in tragedy when two teenage Italian lovers are slain by a Satan-worshipping black metal band.

An elderly woman is murdered and her heart removed in a bizarre ritual that the disturbed killer hopes will bestow vampire-style immortality upon him.

Obsession with vampires and belief in Satanism is a lethal brew that results in a newlywed couple sacrificing a human victim to their dark master.

A young woman who plays an online role-playing fantasy game enlists a troubled fellow player to murder her father for insurance money.