Acorn TV Exclusive | Cardinal S4 | Official Trailer

In this atmospheric thriller, demoted detective John Cardinal (Billy Campbell) is brought back to the homicide division when his hunch about a serial killer proves true. #AcornTVUK #Cardinal Sign up for a free trial of Acorn TV UK now: Subscribe to the Acorn TV channel on YouTube: Watch Acorn TV on all your favorite devices: FOLLOW US: Facebook: Twitter: Instagram: