Burnt Offerings (1976): Creepy House, Creepier Cinematography?

Okay, so I just watched "Burnt Offerings" (1976) and I'm seriously creeped out. Anyone else seen this? The whole premise is just unsettling - you know, family moves into a massive, rundown house for the summer and things get progressively worse. I know it's not exactly a groundbreaking plot, but the way it's shot is just... something else. I'm trying to figure out who even directed this thing because the visual storytelling is subtly brilliant. There are these lingering shots of the house – the way the light hits the windows, the shadows that seem to move on their own. And the pool! That pool is practically a character itself! Plus, the way the house seems to heal itself after someone gets injured... that's a fantastic visual metaphor. The scene where Oliver Reed’s character is sunbathing and starts getting burned is disturbing, but visually impactful too. Seriously, has anyone else noticed how the cinematography seems to reflect Ben's (Reed's character) increasing mental instability? I'm mostly curious about your interpretations of the house itself. Do you see it as a purely malevolent entity, or is it more like a parasitic force feeding off the family's energy? And what's with the chauffeur? That guy gives me the serious creeps! Also, am I the only one who thinks this movie is way more effective because it's not super gory? I feel like the implied horror is way more unsettling.