Scotland, Pa.

In the quaint town of Scotland, Pennsylvania, the bustling fast-food joint, Duncan's, thrived in 1975. It was a beloved establishment where loyal customers gathered and employees worked hard, including Joe 'Mac' McBeth, who dreamt of a promotion.

Despite Mac's dedication and hard work, he was overlooked for the position of manager by Douglas McKenna, who had ulterior motives. Unbeknownst to everyone, McKenna was embezzling funds from Duncan's, setting the stage for his eventual downfall.

Mac's life takes an unexpected turn when he meets three free-spirited hippies, one of whom claims to be a fortune teller. The fortune teller predicts a promising future for Mac in bank drive-thru management, igniting ambition in both Mac and his wife, Pat.

Inspired by the fortune teller's prophecy, Mac and Pat decide to investigate McKenna's corrupt activities. They secretly gather evidence of embezzlement and present their findings to Duncan, hoping to bring justice to their troubled workplace.

After Mac's determination impresses Duncan, he reveals plans to convert Duncan's into a lucrative drive-through. Unfortunately, tragedy strikes when Duncan is fatally injured in a robbery orchestrated by Pat, pushing Mac deeper into chaos.

In an attempt to carry out their plot against Duncan, Mac and Pat face an accident involving a deep fryer. The mishap results in serious burns for Pat, showcasing the dangers of their increasingly reckless decisions.

As the chaos unfolds, Investigator McDuff arrives at Duncan's to investigate the bizarre series of events. Amidst the confusion, a homeless man is wrongfully accused of the robbery, demonstrating the ripple effects of Mac and Pat's actions.

After Duncan's passing, a surprising posthumous gift is revealed for his son Malcolm. This development opens a new chapter for Mac and Pat as they seize the opportunity to pursue their ambitious drive-through venture with newfound determination.

As Mac and Pat's ambitions grow, Mac begins a psychological descent into paranoia, spurred by inquiries from his friend Banko regarding the origins of their drive-thru idea. This descent is marked by haunting hallucinations of the hippies, heightening his sense of dread.

Pat's mental state deteriorates as she becomes obsessively fixated on a perceived deformity from her burn. Her delusions compound the couple's troubles, reflecting their descent into a chaotic world fueled by desperation and fear.

Driven by his crumbling mental state, Mac considers eliminating Banko, believing he poses a threat to their ambitions. This impulsive decision culminates in a shocking act of violence that alters the trajectory of their lives forever.

The town is rocked by the shocking news of Banko's brutal death, coinciding with Mac's rise to infamy. A press event intended to celebrate his new status is overshadowed by scandal and the weight of his actions.

During a surreal press conference, Mac experiences a vivid hallucination of Banko, leading to a disturbing question that reveals his spiraling madness. This bizarre moment captivates a national audience, further entrenching his notoriety.

The climax of Mac's chaos erupts in a dangerous confrontation with law enforcement on a rooftop. Armed with the sheriff's gun, Mac's volatile temperament leads to a tragic and fatal resolution.

As Pat succumbs to her delusions and feelings of despair, her tragic end comes through self-harm. This sends a ripple of grief through the community as McDuff steps in to reclaim Duncan's, transforming chaos into calm.