Sarah Quinn is a forensic accountant. She is good at other people's lies.

Forty-eight hours before the access logs flag her, a money-laundering trail she was hired to follow resolves to her own husband. The payments sit down in the garden-level guest suite under their floor, the one that is empty on paper, the one with the skeleton key in the bowl by the door.

She has two days to decide who the suite really belongs to, and whether Mark is the end of the trail or just the name on the door.

A mystery thriller about a marriage, a key, and a clock that does not care who she loves.