Defense attorney Mickey Haller's trial defending tech entrepreneur Trevor Elliott begins with opening statements painting his client as a jealous killer. As Mickey pursues a tunnel vision defense and introduces alternative suspect Anton Shavar, a crisis erupts when an anonymous letter exposes Juror Number Seven as an imposter who vanishes before court. Both attorneys refuse a mistrial despite the jury tampering, forcing the trial to continue with an alternate juror.

Mickey now faces an impossible situation: he must win the case legitimately without his insurance policy juror while keeping Trevor and his family alive from Russian retaliation. Meanwhile, prosecutor Maggie McPherson's parallel investigation into human trafficker Angelo Soto intensifies when his girlfriend Tanya reveals a chilling pattern connecting a flower shop to disappearan ...