A quiet neighbourhood like any other, with rows of unchanging houses tucked away from the main bustle of the city. The sound of squeaking bicycle wheels and laughing children echoed along streets that held the slight scent of oatmeal cookies and apple pie. The neighbours threw weekend barbeque parties and traded recipes, carpooled and arranged playdates for their children. A picture-perfect slice of suburban heaven.

At the end of a cul-de-sac, nestled back from the road, sat a small, nondescript house. Painted its uniform white with blue trim, boasting a quaint porch and a rocking chair, and a welcome mat by the front door. An older man lived there, retired from dentistry on the back side of fifty. Now he spent his time sipping tea in his porch chair, waving and grinning at the street’s residents.

His neighbours jokingly referred to him as Dr. Smiles.

The quietest of neighbours, polite…