'Agony' is one of those episodes with a list of suspects, lies & elements - divorce, S&M, drugs, cold cases, jealously, multiple jurisdictions, plea deals - by the boatload. It quickly narrows into a picture of a serial killer on the loose. If you're like me it's the second half where you'll find the story comes awfully close to not making sense, losing you. The thing not in question is it let's ADA Carmichael (Angie Harmon) really sink her teeth into feeling personally involved.
Det. Briscoe (Jerry Orbach) & Curtis (Benjamin Bratt) on the scene of a mailman murder discover a second victim Catherine 'Kitty' Lansing (Christina Haag) barely hanging onto life. The primary suspect her separated husband is ruled out. They arrest Bergstrom (Chris Mullen) with a prior incident of almost killing a lady (charges were dropped) and it appears they have a serial killer in custody. After Kitty recovers and leaves the hospital though, she gets a threatening note which couldn't have come from him and points to it being someone closer than a stranger.
There's clues sprinkled along the way - sort of stuff easily missed - that yes when put together lead back to the guilty parties. Some of it rings true while one piece feels like it should have been looked into sooner. It's the serial killer subplot that stumbles. You have to accept that he's willing to plea to crimes in NYC not involved in to avoid possibility of extradition, death penalty. However up until this point everything has shown he's meticulous for details, doesn't leave evidence behind so why this concerns him so much feels lightweight.
Ultimately 'Agony' gets by on twists, nods to McCoy's (Waterston) bending of the rules in the past and Harmon. Her body language almost rivals some of the juicy dialog she's given and a palpable level of disgust. Of course she's the first ADA fiercely in support of the death penalty as well. It's an episode that comes down to legal bluffs, emotions and a killer that so hates women that he can't bear to see Abbie have any power or control over him.