Wer

In the rural countryside of France, a brutal attack on an American family leaves only the mother surviving with severe injuries. A mysterious man, Talan Gwynek, is arrested and charged with the murders. Believing her client is innocent, defense attorney Kate Moore takes on the case and begins to uncover evidence of a dark family secret. As Talan's true nature is revealed, Kate must fight for survival and unravel the truth behind the attacks. With a rampaging werewolf on the loose and a government conspiracy unraveling, Kate's quest for justice becomes a battle for survival.

You can stream Wer on: Apple TV Store

Some movies that have similar genres and were produced around the same time as Wer include Sinister, Get Out, You're Next, Goodnight Mommy, I Am Not a Serial Killer, Saw VI.