CSI Crime Scene Investigation

A game of one-on-one is interrupted by the discovery of a woman covered in blood leaning over the body of another woman who has had a stake driven through her heart.

Mac and Stella investigate the electrocution death of a man found in a subway tunnel.

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.