Lily Knight

A young woman is stabbed to death and dumped in a forest. The woman's best friend is the prime suspect, but could a third party be involved?

A shooter targets runners at the Boston Marathon. Jane and Maura must conduct their investigation in secret to avoid a panic and catch the killer before another shooting occurs.

Nick immerses himself in the world of illegal drugs when he defends a man with learning difficulties who is accused of killing a well-known drug dealer. Meanwhile, Jake is booked for vehicular homicide.

A brutal storm rocks Chicago; Halstead encourages Dr. Grace Song to go against her own findings for the benefit of their patient; Asher rushes to the hospital to help Archer's pregnant patient; Maggie's concern for Ben consumes her.

Rapper Snoop Dogg is Nancy's first customer and dedicates a rap to her: 'MILF Weed'. Plus, Heylia learns of Conrad's betrayal.