Terror on Track 9 is a gripping thriller centered around Detective Frank Janek, portrayed by Richard Crenna, who is on a relentless pursuit of a cunning serial killer terrorizing Grand Central Station by injecting victims with a deadly poison. Joan Van Ark stars as Leslie Renner, adding depth and intrigue to the narrative as the investigation unfolds. Trivia: 1) Richard Crenna, known for his versatile roles, performed many of the intense chase scenes himself, adding authenticity to his portrayal. 2) The film's Grand Central Station scenes were shot on location, providing a realistic and immersive urban backdrop rarely captured in thrillers of that era. 3) Joan Van Ark was cast shortly after her rise to fame on the television series 'The Young and the Restless,' bringing a fresh fan base to the movie.