Michael Fassbender and Cate Blanchett push the boundaries of marital trust Black bag.

The first trailer for director Steven Soderbergh’s new film, described as a “gripping spy drama,” was released on Tuesday, December 17th. Black bag is about “the legendary Secret Service agent George Woodhouse and his beloved wife Kathryn.”

“When she is suspected of betraying the nation, George faces the ultimate test: loyalty to his marriage or his country,” the synopsis reads.

In the trailer, Fassbender’s George says to Blanchett’s Kathryn, “I would do anything for you.” She asks, “Would you?” and he assures, “Yes.” Later she asks, “Would you kill for me, George?” Would you?”

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Elsewhere in the teaser, Kathryn is heard admitting, “My commitment to my marriage is my professional weakness.”

The spy thriller comes from Jurassic Park Screenwriter David Koepp, the cast also includes Marisa Abela, Tom Burke, Naomie Harris, Regé-Jean Page and Pierce Brosnan.

Soderbergh has another film coming soon, also written by Koepp: Presentabout a family who “moves into a suburban home and becomes convinced that they are not alone.” Coming out on January 24th, this film stars Lucy Liu, Chris Sullivan and Julia Fox.

Black bag hits theaters March 14th.