Goosebumps: The Ghost Next Door" Part 1

All of the last 4 seasons episodes were two part 1 hour episodes

Plot
Part 1: Hannah Fairchild mistakes a boy named Danny Anderson for a ghost of a kid that died in a house fire until she learns from a dark figure, who resembles a shadow, that she's the ghost.

Trivia

 * For conclusion see 2nd part
 * Based on "The Ghost Next Door (Goosebumps #10)"