: Season 1, Episode 9 is titled "Child's Play," serving as the lead-in to the season finale, "Original Sin".
: Detective William Murdoch investigates the murder of Howard Rookwood, a prominent Toronto industrialist and philanthropist found dead in the horse stables of his glue factory. Key Investigation Details : [S1E10] Child's Play
: Small footprints found at the scene lead Murdoch to suspect that a child, or several children, may be responsible for the crime. : Season 1, Episode 9 is titled "Child's
: Season 1, Episode 10 (though some listings rank it differently) involves toys that turn children into mindless drones. : Season 1