Complex sentence: The Story of "The Waiting Room" takes place is a remote South Indian Railway station, where 4 passengers left stranded on one rainy night, but a Maniac serial killer on the prowl targetting the passengers of the waiting room, creating fear among them.
Split into simpler sentences: The story of "The Waiting Room" takes place in a remote South Indian railway station, where four passengers are left stranded on a rainy night. A serial killer is on the prowl, targeting the passengers of the waiting room, creating fear among them.