Mac, Aiden and Flack investigate when Elaine Curtis is found dead at a dog competition, a knitting needle sticking out of her chest, and no shortage of suspects ranging from judges to trainers to contestants. Stella and Danny investigate the death of... (more) bicycle messenger Michael Starling, but the crime scene may have been anywhere along his route.

Aisha Hinds, Brad Greenquist, Desi Lydic, Hira Ambrosino, Julia Duffy, Marc Lynn, Marcia Firesten, Neil Giuntoli, Paul Carafotes, Robert Costanzo, Steve Hytner, Tiger Mendez, Zach Grenier