Washington, D.C., Metro Police Detective Sergeant Sam Holland needs a big win to salvage her career-and her confidence-after a disastrous investigation. The perfect opportunity arises when Senator John O'Connor is found brutally murdered in his bed, and she's assigned to the case. Things get complicated when she has to team up with Nick Cappuano, O'Connor's friend and chief of staff…and the man she had a memorable one-night stand with years earlier....

Lieutenant Sam Holland has no sooner accepted Senator Nick Cappuano's proposal than she's back on the job. A woman has been found brutally murdered and evidence points to Henry Lightfeather, a senator and close friend of Nick's. While Sam investigates, Nick stands by his friend--complicating his own bid for reelection, and causing tension between the couple. As Sam's investigation reveals a scandal that rocks the capital, Nick and Sam discover that...