I just saw the online virtual screening of Roommate Wanted (2020) at the Crimson Screen Horror Film Festival.  This is an absolute must see.

A group of college students sublet a room in their rental house to "Dean", a man who on the surface appears to be the Richie Cunningham type, but who hides multiple dangerous alter-egos.  It is in a similar vein to Single White Female, but in a less psychological thriller and more full throttle slasher kind of way.

If you get a chance to see it May 21 through 23, do so.  If not, then look for it at other film festivals and add it to your horror film Blu Ray wish list.