In the 1950s, set against the backdrop of rural Alabama during the cotton harvest, the story unfolds around the Honeydripper Lounge and its owner, Tyrone "Pine Top" Purvis (Danny Glover). With debts piling up from the liquor man, the chicken man, and the landlord, Tyrone finds himself in desperate need of attracting young cotton pickers and fresh recruits from the nearby Army base to his juke joint. The competition, Touissant's, looms right across the way, making the stakes even higher.
Enter Sonny (Gary Clark Jr), a young aspiring musician who arrives in the quaint town of Harmony simply because he appreciates its name. Armed with a self-made electric guitar, Sonny receives a recommendation from the train attendant to check out the Honeydripper. However, upon meeting Tyrone, he finds himself rejected as Tyrone is unwilling to shake things up in the juke joint. Yet, time is of the essence and tough choices must be made quickly.
After parting ways with his regular talent, Bertha Mae Spervin (Dr. Mabel John), Tyrone declares to his right-hand man Maceo (Charles S. Dutton) that he has hired the renowned electric guitarist Guitar Sam for a crucial one-night gig, hoping to pack the place and save his business. Unfortunately, Tyrone lacks the necessary fifty dollars to pay Guitar Sam upfront. Meanwhile, Maceo grapples with his own problems as he navigates the pressures of marriage from Nadine (Davenia McFadden), the local seamstress, who’s known for her cooking and sunny disposition but has a violent past.
At home, Tyrone's relationship with his stepdaughter China Doll (Yaya DaCosta) is solid, contrasting sharply with his troubled marriage to Delilah (Lisa Gay Hamilton). Delilah faces pressure from the local minister, Reverend Cutlip (Albert Hall), who believes she should abandon her questionable husband and join his church. Delilah, who cooks at the Honeydripper, is burdened by the financial troubles that force her to work as a servant for Mrs. Amanda Winship (Mary Steenburgen), who composes her complaints about an ungrateful spouse, bereft of the genuine kindness that Tyrone provides.
The narrative takes a turn when Sonny is wrongfully imprisoned by Sheriff Pugh (Stacy Keach) and forced into labor on the cotton fields controlled by the corrupt Judge Gatlin (Danny Vinson). Despite having committed no crime, Sonny is treated like a common felon in Harmony. Fellow cotton pickers reveal the tricks of the trade, while tensions rise among them.
Eventually, Bertha Mae’s unexpected passing leaves Tyrone burdened by the need to arrange a funeral. Tempted by the idea of stealing one of her rings to settle outstanding debts, he fights against the impulse at the last moment. During this turmoil, he seeks solace in conversations with Possum ([Keb' Mo']) a blind vagrant guitarist who offers wisdom gleaned from a lifetime of adversity.
On the night of the big show, Guitar Sam doesn’t arrive, a twist predicted by Possum, prompting Tyrone to make a desperate deal with Sheriff Pugh to release Sonny from jail—ultimately making the sheriff a co-owner of the Honeydripper. Meanwhile, Pugh's obsession with Delilah’s cooking unveils a humorous side to his character, revealing that his interest lies more in her culinary talents than in any romantic pursuit.
As the clock ticks down, Tyrone cleans up Sonny and devises a final plan to present him as Guitar Sam to a crowd ripe for entertainment. When Sonny takes the stage and unleashes his electrifying guitar skills, the fate of the Honeydripper hangs in the balance. The atmosphere crackles with energy as Sonny and Possum perform together, even as disruptors attempt to challenge his legitimacy. In the midst of chaos, Tyrone battles to maintain control over rising tensions among the competing crowd.
The finale sees old Toussaint (James Crittenden) confessing defeat as the landowner arrives to collect the overdue rent from Tyrone. The arrival of Sheriff Pugh as co-owner dramatically shifts the dynamic, and the landlord realizes that evicting Tyrone will not be as easy as he once thought. With the notion that the Honeydripper, under new management, may just thrive, it highlights a profound moment when rock n' roll becomes a symbol of hope and redemption.
