Memorable chiller. Little Tony's mom and dad are so conventionally suburban and their home life so ordinary, that the contrast with what comes later turns really menacing. Seems little Tony has extra-sensory powers when he sees a magic shop that no one else sees. Once he and Dad enter the magic shop's preternatural bubble, simple trickery gives way to the inexplicable powers of real magic, and a demonic force emerges. For the Grainger family, suburban life will never be the same.
Kudoes to producer Harrison for getting such an odd looking boy, Megna, for the pivotal role of Tony. That way, we're a bit discomfited from the start. And when Tony's latent sensibility is transformed by the sinister Dulong's magic box, it's not a big stretch. Then too, that wolf-like dog functions as a scary familiar for the boy sorcerer. Actually the episode reminds me a bit of Hitch's 30-minute Special Delivery (1959), which also dealt with a transformed suburban boy. Anyhow, the 60-minutes remains superior series fare. Importantly, it also undermines the placid assumptions of a well-ordered middle-class. For Hitchcock, I believe, this was a favorite theme, and maybe one reason why his work remains both unsettling and compelling without having to spill buckets of blood.