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Serenity Trailer: Matthew McConaughey, Anne Hathaway Reunite In Mysterious Thriller

Matthew McConaughey and Anne Hathaway reunite in the trailer for Serenity, the Steven Knight-directed thriller that is, contrary to its title, anything but peaceful. 

In Serenity, McConaughey and Hathaway are former lovers whose lives collide over an indecent proposal. McConaughey's Baker Dill (once known as John) is shadowed by a mysterious past and works as a fishing boat captain on a secluded Caribbean island, and Hathaway's Karen is his ex-wife who seeks refuge from her abusive husband, played by Jason Clarke, and asks Dill to murder him in a way that would make the killing look accidental. 

"You were right about him," Hathaway's Karen says in the trailer. "I want you to take him out on your boat and drop him in the ocean for the sharks."

As Dill grapples with deciding what's right and wrong in this especially sticky situation, and as the residents of the tiny island he now calls home begin acting increasingly peculiar, he slowly realizes that his fresh start in life may be far dirtier than he bargained for. 

The trailer is intense to say the least, featuring flashes of Dill's fishing line, rain-soaked conversations, and an apparent suicide, and it all leads to a harrowing, mysterious line: "Sometimes we do bad things for good reasons."

Check it out above. 

Serenity marks the second collaboration between McConaughey and Hathaway, who previously co-starred in Christopher Nolan's Interstellar. In the four years since the sci-fi epic opened in theaters, both actors have clearly kept busy with other films (McConaughey appeared in Gold and The Dark Tower, and Hathaway is currently starring in Ocean's 8), but it's fantastic to see the Oscar-winning pair back together for what's sure to be another gripping genre film. 

Diane Lane (Justice League), Djimon Hounsou (King Arthur: Legend of the Sword, Guardians of the Galaxy), and Jeremy Strong (HBO's Succession) also star in Serenity, which was filmed on location on the island of Mauritius.

Secrets will rise to the surface when Serenity is released on October 19.