Righteous district attorney Joseph Foster's main goal in life is to rid his city of the gangsters infesting it. In order to be even more efficient in his war against crime he plans to run for governor. One day he meets a strange, shadowy man, Nick Beal, who offers to help him to achieve his end. Beal convinces hesitating Foster by dint of easy money, easy sex with an alluring young woman and the promise of easy success. Joseph Foster soon becomes an influential politician but a corrupt one. A minister of God manages to show him that he has been the plaything of the so-called Nick Beal, who might be Old Nick , that is to say Satan himself. Foster then decides to resign and to become an honest man again.
While on a botanical expedition in Tibet Dr. Wilfred Glendon is attacked in the dark by a strange animal. Returning to London, he finds himself turning nightly into a werewolf and terrorizing the city, with the only hope for curing his affliction a rare Asian flower.
Americans on vacation in the Caribbean take a tour of a nearby island at night and watch a local voodoo ritual. Soon after, they find themselves stranded on the island and under attack by unseen foes. One by one they meet violent ends.
A reclusive circus master invites a group of social media stars to his house of haunts. Anyone who can make it out before being scared into submission will earn $250,000 - but the stars soon learn they are not only competing for money, but also fighting for their lives.