A girl faints in the Toronto subway. Her friends are taken to the hospital with unexplained rashes; they complain about a funny smell in the subway. Swarms of police arrive, and then the hazmat team. Panic ripples through the city, and words like poisoning and terrorism become airborne. Soon, people are collapsing all over the city in subways and streetcars and malls, always prompted, they say, by some unidentifiable odour. Alex was witness to this first episode. He’s a photographer:...