A woman boards a train for a murder mystery game that her lover acts in. However, partway through their journey, several of the actors in the fake murder take things further than expected, making the mystery an actual series of thefts and murders. And this movie is just getting started with this twist!

The next one happens when the train derails into a lake in the middle of the night. Now, beyond being trapped in the sinking wreckage, there’s also an amphibian monster that wants to devour every single one of them. Think Humanoids from the Deep.

Seriously, I walked away from the screen for one minute and suddenly I was watching a completely different one than I started. I had to rewind to make sure I hadn’t somehow started watching a completely different movie. And I kept wondering when does Lance Henriksen show up? The end. He shows up at the end.

Also, I kinda love that the monster is known as the Soul Shredder.

This film was written and produced by Suzanne DeLaurentiis, who was also the producer for Rocky V and Mannequin 2: Mannequin On the Move. I also learned that she’s the cousin of Frankie Avalon from her site. There’s always a music connection!

If you’re in the mood for a movie that’ll keep you guessing — and combines undersea humanoid monsters with 1930’s Clue–like murder mystery — this is it. Honestly, it’s a genre unto itself.

D-Railed is available today, August 6, via on demand and DVD.

DISCLAIMER: This movie was sent to us by its PR department. That has no impact on our review.