For five years, Detective Rick Monaghan and his partner Keiran Quinn have shared everything that matters: the job, the danger, the dark humor that gets cops through the night.

Everything, that is, except a future.

When Keir abruptly resigns from LAPD Homicide and disappears on a solo trip to Ireland, Rick is blindsided. Their brief attempt at being more than friends may be over, but losing Keir altogether is something else entirely.