In a gripping tale set in the New York City subway, six strangers find themselves ensnared by Mac, an enigmatic figure who professes to be a demon hunter. He asserts that one among them harbors evil and delves into their souls, uncovering five chilling, supernatural stories: a woman in dire straits turns to a fortune teller for aid, a pair of newlyweds encounter a creature lurking near their home, a young man explores a mental institution, conjoined twins stumble upon a coin that grants wishes, and a man obsessed with a colleague discovers a shop selling magical potions. It falls to Mac to unravel the enigma and vanquish the demon hidden among them.