Casper is a kind young ghost who peacefully haunts a mansion in Maine. When specialist James Harvey arrives to communicate with Casper and his fellow spirits, he brings along his teenage daughter, Kat. Casper quickly falls in love with Kat, but their budding relationship is complicated not only by his transparent state, but also by his troublemaking apparition uncles and their mischievous antics.

Each Christmas Eve, the Ghost of Christmas Present selects one dark soul to be reformed by a visit from three spirits. But this season, he picked the wrong Scrooge. Clint Briggs turns the tables on his ghostly host until Present finds himself reexamining his own past, present and future.