Never heard of Intruders (2015) but it is so astonishingly good I can't believe it.
Alright full disclosure: I got this confused with that Clive Owen Intruders movie (by the director of 28 Weeks Later released in 2011). In other words, I'm an idiot, but damn, this newer 2015 film was fantastic. I only read a really brief synopsis before watching it so I was shocked at what unfolded. I can't believe some people didn't like it. It only has a 5.7 rating on IMDb but I would easily put it at a 7 or 8. That said, don't read any spoilers or watch a trailer. Just like most movies, it's best to go in with a blank state (they give way too much away these days). One thing is for sure: you have to admire the actress. Her range is incredible, and the storytelling was perfectly executed. You get sympathetic characters that hook you from the start and a compelling beginning that turns everything on its head. This reminded me of Don't Breathe, which was another single-location thriller I really liked. I'm still curious though if that Clive Owen flick is worth watching.