'Help Me I'm Dead' aka Die Geschichte Der Anderen (2013) – Andreas Bethmann.

Grisly haunted house Nazisploitation from gore-master Andreas Bethmann, with righteous splatter FX by Olaf Ittenbach, plus a lively performance from legendary Jess Franco alumnus Antonio Mayans?????? Baste my regenerative organs in honey, and let the fucking dogs out! I'm in!!!! As a sweet, disabled psychology student Jennifer (Margarethe Von Sterne) collects thesis material about the differences between individuals that specifically chose the countryside over city life, her growing curiosity about an abandoned property with an especially dark history culminates in a terrifying night of relentless torment.

Bethmann successfully engenders palpable intrigue over this singularly spooky domicile, and one has enormous sympathy for his physically, and emotionally fragile protagonist. While there are jump-scares, the onus is on slowly encroaching malice, as Jennifer becomes a magnet for the house's increasingly unsettling supernatural machinations. 'Help Me I'm Dead' benefits hugely from its macabre J-Horror influences, but the raw, exploitative material provides an additionally lurid patina of Grindhouse satisfaction. Frankly, it's not all that often that a haunted house trip delivers such a charge of old school video nastiness!