House of Dust

Evil Remains.

A supernatural possession horror film where college students become vessels for malevolent spirits after disturbing an asylum's cremains, blending paranoia and body-horror dread.

College students exploring an abandoned insane asylum accidentally shatter canisters holding the cremains of former mental patients. Inhaling the dusty ash filling the air, they're soon possessed by the souls once held within them. One is a convicted serial killer from 1950.