Breakfall
(Book)

"Mina Banksy, a thirty-two-year-old author and mother of a rambunctious three-year-old, is still reeling from a recent divorce and what she calls an 'early midlife crisis' when two Chicago detectives show up at her door looking for her friend, Dylan. Or, more accurately, the van that she allowed him to register in her name, because Dylan—a friend from her former Jiu Jitsu gym—is a recently recovered addict and convicted felon. According to the cops, Dylan is not so reformed after all: the van has been under suspicion for criminal activities, and she may be in trouble for it. Flustered by the stressful meeting, Mina calls Matthew, a cop who she'd had an affair with six months earlier, causing a scandal at their close-knit gym as well as instigating her divorce and his relocation to Arizona. Matthew tells her to cut all ties with Dylan and report the van missing. Instead, Mina tries to track down Dylan at the rehab where he lives. She finds him dead, and the nature of his injuries make it appear the murderer is someone well-versed in Jiu Jitsu. When Mina's ex-husband also turns up missing, and Matthew returns to Chicago, every member of the gym—current and past—becomes a suspect, and somehow all roads lead back to Mina Banksy." --publisher's website.