Poison opens with a beautiful Indian-Canadian woman collapsing in front of her family and dying an agonizing death.

Police are not called to the scene, and a renowned forensic pathologist is stumped over the cause of Parvesh Dhillon’s demise. But soon another gruesome death strikes the Indian community in Hamilton—this time a young man, the cause again a mystery. The beneficiary of the life insurance policy is a close friend named Sukhwinder Dhillon, a native of the Punjab in India and the same man who received payout for the death of his wife, Parvesh. A veteran insurance claims specialist calls Hamilton Police, who assign a charismatic homicide detective to the case, setting in motion an incredible international manhunt to catch a serial killer.