It’s not that Grandmother’s House’s last 30 minutes were horribly bad – they’re average – but what makes them remarkably disappointing is that they follow one hour of interesting buildup, but then miss most of the marks that were so carefully laid down before.
The latter half also leaves some gaping plot holes and far too many big questions unanswered to make Grandmother’s House a completely satisfying experience. But most of the experience still is fascinating and the story revolving around young kids adopted by their grandparents works well. The intensifying around the mystery involving a strange lady roaming about works well and the thrilling parts are well timed and effective.
Grandmother’s House works because of its pure daylight horror / mystery setup and as such still felt like a fresh breeze in a genre that relies very heavily on clichés and walking in the worn out footsteps of the big box office magnets.