On Tonight

A cab driver's murder uncovers a heinous past.

The investigation of a murdered woman uncovers an illicit love triangle.

Halstead and Atwater go undercover.

Tensions run high as Intelligence seeks justice for Olinsky.

A couple in love – and a party bus clash during a pre-Halloween celebration. Who killed the “Hockey Player?

Investigators look for answers when a popular school superintendent is found dead in his western New York home.

A famous architect's promiscuity becomes the key to solving the murder of a promising young designer.

A schizophrenic obsessed with Marilyn Monroe commits a series of murders.

As Delko's life hangs in the balance, Horatio reminisces about the formation of the team.

A man desperate for justice creates a hostage situation at the Miami/Dade Police Department, and Horatio looks into his claims.