‘Paid in Blue’ is a horror film rooted in pieces of Trinidad’s Blue Devil folklore. Keston, a young man at a Carnival fete, spends the night humiliating a stranger at the bar and driving his oldest friend, Dario, out of the party in disgust. Drunk and alone, Keston stumbles into the dark street, where a group of Blue Devils steps into his path and demands tribute. He laughs, throws a fistful of cheap coins at their feet, and shoves past them, ignoring an old woman’s warning to his detriment.