BW movie about young women burned alive as a sacrifice

Several friends travel to Sweden to study as anthropologists a summer festival that is held every ninety years in the remote hometown of one of them. What begins as a dream vacation in a place where the sun never sets, gradually turns into a dark nightmare as the mysterious inhabitants invite them to participate in their disturbing festive activities.

A group of young people gathered on the countryside to celebrate midsummer dancing, drinking and romancing. And some fighting too. Followed by more violence, jealousy and guilt. On the journey home one of the cars the travel in collides with a bus.

A sheriff investigating the disappearance of a young girl from a small island discovers there's a larger mystery to solve among the island's secretive, neo-pagan community.

Police sergeant Neil Howie is called to an island village in search of a missing girl whom the locals claim never existed. Stranger still, however, are the rituals that take place there.

A schoolgirl who gets kidnapped by a satanist to be sacrificed.

A young woman, whose heart is plagued by violence, falls in love while the forces of Good & Evil scheme to gain dominion over her soul.

A woman is sacrificed and her heart is ripped out of her chest. The police are after these Satanic Cults and they have no leads. A man is released from prison and gets involved in fighting this cultist with a friend and a female singer.

A fragile, young woman fights to reclaim a mysterious briefcase before her ex-boyfriend and his team of ruthless female assassins kills her.

The virgin daughter of an important business man is kidnapped in a nightclub by a couple working as sex slave traders aboard a ship. She, along with other abducted women, are given a drug that freezes their bodies into human statues.

A young woman gets raped by a group of six vicious thugs, who leave her for dead in the forest. Nine months later, after seeing "I spit on your grave" on TV, she decides to take bloody revenge on her molesters.