Spare The Rod is a heavy two page rpg about the historical horrors of the Magdalene Laundries---but also dosed with elements of giallo films, including ritual murder and the overt presence of the supernatural.
Spare The Rod takes inspiration from Suspiria and Bluebeard's Bride, which both hit hard in different ways, and both of which might be an immediate 'nope' for people---however Spare The Rod does not come with a content warning, and it deals with multiple varieties of abuse, neglect, and death as thematic elements, so consider this a CONTENT WARNING.
There's also a table of prompts for the GM that includes sexual abuse and location prompts that include the same, so if you do play this, be triply cautious, have a safety mechanism, and only play with a GM you trust.
Beyond that, Spare The Rod has the potential to be a fairly powerful if pulpy historical suspense/survival horror. The setup is solid. The Laundry is well-mapped. If the GM is fully committed to not traumatizing anyone at the table and care is taken to give the characters agency, I think it can be a tense scenario.
You do need your own ruleset, but I think it works just fine with an OSR engine of your choice.
Alternately, you could probably have the players as investigators looking into the Laundry and use the game as a framework for anything from Call of Cthulhu to Silent Hill.