Alex Murdaugh is the head of a family-led legal dynasty in South Carolina; his family's hidden crimes begin piling up as Alex attempts to conceal his own financial felonies, and he falls into a dark spiral.

Police rush to the Murdaugh home after Alex Murdaugh reports his wife, Maggie, and son, Paul, dead; with police and press digging into Alex's life and law firm for leads, he attempts to derail their investigation with false alibis.