Boston, 1920.
As Prohibition casts its shadow over the city, photographer Josephine Sullivan's lens leads her to The Blue Note-a jazz club where the music is hot and the drinks flow freely behind closed doors.
When Jo meets Gabriel Reynolds, the club's charismatic owner, their connection is immediate and electric. Despite warnings from her police officer brother and the complications of Gabe's world, they fall deeply in love and marry in a whirlwind romance.
But six months into their marriage, secrets begin to surface. Gabe's late nights, hushed conversations, and unexplained meetings with the beautiful singer Vivian Hayes fuel Jo's suspicions. When she accidentally photographs what appears to be a betrayal, Jo's world shatters.
As Jo seeks comfort in the arms of a supportive editor and Gabe expands his illegal operations to keep his business afloat, their marriage crumbles under the weight of unspoken truths and assumptions.
It takes a devastating federal raid to bring them face-to-face with what they've lost-and what might still be saved. In the aftermath, Jo and Gabe must decide if the truth captured in her photographs is enough to rebuild what they once had, or if some vows, once forgotten, can never truly be renewed.