Friends, partners, and now lovers.

If it was complicated before, it's even trickier now that Will has been assigned a case which guarantees he'll be working side-by-side with ex-boyfriend David Bradley.

As for Taylor, newly recovered from his recent shooting and finally off desk duty, being reassigned a new partner -- who seems as thrilled to be working with him as he is her -- is just the start of his problems. Whoever has been leaving weird notes on his car windshield has graduated to sending him a dead cobra in a bottle of wine.

Sure, DSS Agents Brandt and MacAllister have made a few enemies over the years, but until now it's never felt quite so personal. Taylor's insecurity about David Bradley and Will's uneasy suspicion Taylor isn't telling him everything he knows about his mysterious stalker puts them on shaky ground at the very moment a vengeful enemy is moving in for the kill.