On a brutally hot summer morning in Charlotte, North Carolina, Big Al Washington—a local legend for car sales and eccentric commercials—dies under mysterious circumstances. As the vultures line up for their fair share of his fortune, Big Al’s trusted attorney, Larry Bridges, informs the Washington kin that the estate will be frozen until the case is solved.

Weary of probing police detectives and avaricious beneficiaries, Larry enlists his savvy daughter, Emily, and Alice Washington—Big Al's estranged daughter and the only family member with a legitimate alibi—to figure out who killed his former boss.

Meanwhile, Big Al’s grandson and successor Luke, in serious need of cash flow, hatches his own plans to speed up the dispersion process. He sees it as his mission to save the dealership and will fulfill it at any cost.

When everyone in the Washington family's inner circle has a potential motive, how will Emily and Alice narrow it down? Or is Big Al’s legacy already doomed, as autonomous cars overtake the market and drive his lifelong business into the ground?