Patrick Dempsey's new TV show is here and it's a wickedly dark mystery.

If you’re looking for a murky new crime series with questionable characters to become addicted to, look no further than The Truth about the Harry Quebert Affair.

The series, which is available now on Stan, is based on the bestselling novel of the same name by Joël Dicker. The book is a wildly popular read which has sold more than two million copies worldwide and has been translated into more than 25 languages, and the series promises to command similar attention.

The 10-part series stars Patrick Dempsey, best known for his iconic turn as Derek Shepherd (otherwise known as McDreamy) in Grey’s Anatomy and a romantic comedy turn in Bridget Jones’s Baby.

Now he has slipped into a different kind of character by taking on the title role as Harry Quebert

Quebert is an established writer who finds himself pinned for murder after the body of Nola Kellergan, a young girl who has been missing for many years, is found buried on his property.

Buried with Nola’s body is a copy of the manuscript of Quebert’s most celebrated book, a love story called The Origin of Evil. We then discover that the famous book was actually inspired by a secret affair with Nola.

As you can imagine, it’s not looking good for Quebert at this moment.

Watch the intriguing trailer for The Truth about the Harry Quebert Affair here:

Much of the story is also told through the eyes of protagonist Marcus Goldman (Ben Schnetzer) a successful young novelist who has been mentored by Harry Quebert in the past while he was struggling with writer’s block after failing to come up with a follow up novel to his first successful literary hit.

Determined to prove that Quebert did not commit the murder he has been arrested for,  Marcus holes up in his home in a sleepy little town in Maine and begins to pick at the mystery that has been sitting dormant for years.

In this case, if you have yet to read the book, it’s important to keep your eyes away from spoilers of any kind, because the finale episodes of this series has quite a few twists and turns in place, culminating in an ending you will not see coming.

The Truth about the Harry Quebert Affair is available to watch exclusively on Stan.

Want to help Mamamia with some new ideas? Plus go in the chance to win $50? Take our quick survey now.