A twenty-seven-year-old woman from a wealthy family in Woodstock, Vermont, known for her sharp tongue and dark humor. After a brutal Halloween attack leaves her with a fatal brain injury and seven days to live, she foregoes surgery to spend her final week solving her own murder.

Jet’s childhood best friend and neighbor, described as a kind, loyal person who has always harbored deep feelings for her. He becomes Jet's reluctant but devoted partner in crime, agreeing to help her investigate the attack when no one else will.

Jet’s older brother who works for the family business, Mason Construction, and is eager to inherit the company from their father. He has a tense, competitive relationship with Jet and presents a polished exterior that often clashes with her nature.

Luke’s wife and the mother of their baby, Cameron; she was once Jet's best friend before marrying into the family. She presents a perfect, put-together image but harbors secrets that add tension to the family dynamics.

Jet’s critical and somewhat cold mother who has a complicated history with the town. She often clashes with Jet over her life choices and seems more concerned with the family's reputation than emotional connection.

Jet’s father and the wealthy owner of Mason Construction. He is suffering from kidney disease, a health struggle that looms over the family and the business's future.

Jet’s ex-boyfriend who attempts to reconnect with her at the town Halloween fair shortly before her attack. His lingering presence and recent proposal make him a person of interest as Jet re-evaluates the people in her life.

Billy’s father and a local police sergeant who lives next door to the Masons. He has a long, intertwined history with Jet's family that complicates the investigation into her attack.

Jet's loyal and beloved dog who offers her unconditional love. He serves as a source of comfort for Jet amidst the chaos of her final week.