Torn between two lovers…and duty.

In the Regency underworld, two covert Bow Street Runners discover mutual passion. Viscount Trent, renowned ladies' man, has admired William Hall as furtively as Mr. Hall has lusted after the viscount. Only the affection for his mistress, Miss Anna Shaw, held Trent back from acting on his attraction, but William's allure proves too strong. A determined woman, Anna is unwilling to give up her lover to – gasp – another man.

What's a man to do when forced to choose? Keep them both of course, if he can make it work within the harsh strictures of London society. Jealousy and mistrust run rampant as his lovers vie for Trent's interest in and out of the bedroom, the billiard room, the stable, the parlor…

When the investigation threatens Trent's life, will his lovers' animosity work against them, or will they join in more ways than one?