Mr. Mercedes

The murder of iconic local author John Rothstein devastates Hodges. Lou will be tried for killing Brady Hartsfield. High schooler Peter Saubers makes an overwhelming discovery.

Hodges and Montez develop a theory about the Rothstein crime. Peter's parents grow suspicious of his behavior. Finkelstein navigates the complexities of Lou's upcoming trial. Morris teams up with Alma Lane, and together they plot to recover his spoils.

Holly visits Lou ahead of her psych evaluation. Jerome accesses Rothstein's records and uncovers an unexpected connection to Ida. Hodges and Montez look into the death of Stan McNair. Morris and Alma are caught in the act.

Alma and Morris zero in on a suspect. Jerome continues to make strides in the Rothstein case. Hodges shares his guilt over Lou's current situation with Ida. Lou's trial officially begins, and she has some suggestions for Finkelstein.

Morris can't make sense of Danielle's disappearance. Ida clocks Pete's growing appreciation for Rothstein's work. Alma approaches Marjorie Saubers. During Lou's trial, Pace calls Hodges and Montez to the stand. Holly and Finkelstein grow closer.

Alma gives Pete a scare and instructs Morris to do the same. Pete revisits the local bookstore. Hodges and Jerome fear for Holly ahead of her taking the stand. Finkelstein tells Lou that she must silence Brady. Holly and Lou deliver a powerful testimony.

Jerome discovers a connection between Alma and Rothstein. After an attempt by Morris fails, Alma pays a visit to Second Story Books. Hodges visits the Saubers family and confirms their worst fears about Pete. Lou learns her fate.

Holly takes on a questionable roommate. After receiving an unexpected visitor, Ida seeks advice from Hodges. Alma and Morris decide they need more leverage.

Hodges and Jerome have a breakthrough in the Rothstein case. Holly gets a strange inheritance. Morris makes a frightening discovery.

Hodges gets an unexpected call. Pete has a plan. Morris starts to feel the heat.