I enjoyed Josie Ho in the lead as the obsessed and increasingly deranged Lai-sheung. And I really dig the grimly satirical premise and the subtextual critique of an absurd economic reality (i.e., subprime mortgage crisis) and its exaggerated take on how such a reality can motivate someone to take warped, desperate measures.
Unfortunately, Dream Home leans a bit too much into dark exploitation while being too thin on narrative. The former is fine, but the latter just left me wanting. Fans of slasher films not looking for anything too deep may really enjoy this as it's extremely brutal and gruesome.
For me, though, some of my enjoyment was sapped due to the narrative being unnecessarily messy with a chopped up chronology constantly shifting from "the present" between flashforwards and flashbacks. It isn't clever, it's annoying.
Still, overall, if you're into bloody and disgusting fare, this certainly has what you're looking for.