The Letty Whittaker 12 Step Mysteries Books in Order

The Letty Whittaker 12 Step Mysteries follow a woman who should be good at handling other people's secrets, and is much less thrilled when those secrets start circling back toward her. Letty Whittaker is a psychotherapist, a recovering alcoholic, and an amateur sleuth mostly because trouble keeps landing on her doorstep. From the first book, The Enemy We Know, the series makes it clear that Letty's work and personal life are never going to stay neatly separated.

Sobriety is not just background color here.

Glaser uses recovery, shame, relapse fears, and the long work of making amends as part of the engine of the series. AA meetings matter. Old resentments matter. So do professional ethics, because Letty's cases often involve clients, coworkers, or friends whose lives overlap with the very places where she is supposed to keep good boundaries. That gives the books an edge that feels a little different from a standard amateur mystery. Letty is not simply curious. She is emotionally tangled up in what happens.

The cases themselves cover a good spread of danger. One book turns a violent client into a stalker and murder suspect. Another starts with the death of a coworker and pulls Letty into the troubled world of a domestic abuse shelter, stolen files, and a missing resident. Later books send her after the truth behind a friend's murder, into the chaos of a religious cult, and through the fallout from a high school principal's secret life. The details change, but the through line stays strong, people in crisis, people hiding things, and people willing to do real harm to keep those things hidden.

Letty keeps hoping for a calmer life, and the books keep refusing to give it to her.

That setup could be grim, but the tone is lighter on its feet than that description suggests. These are suspense novels with real stakes, yet Letty has a dry, observant voice and a talent for noticing the ridiculous side of human behavior. The humor never erases the darker material. It just makes the series feel more lived in. If you like mysteries that can be tense, awkward, funny, and sad all within the same chapter, this series knows how to do that.

The setting is mostly everyday life, counseling offices, recovery meetings, shelters, bars, schools, living rooms, and church spaces, rather than police labs or glossy thriller locations. That grounded feel is a big part of the appeal. Letty does not have badge power or endless resources. She has intuition, professional experience, a stubborn streak, and a habit of asking one more question than is probably safe.

Read these in order if you can. Letty grows across the series, and her history with addiction, friendship, fear, and responsibility carries forward. What begins as a sharp hook, therapist with secrets gets drawn into murder, turns into a longer story about recovery, loyalty, and what it costs to keep showing up when life keeps getting messier.