King Arthur's headstrong nephew (Dev Patel), embarks on a daring quest to confront the Green Knight, a mysterious giant who appears at Camelot. Risking his head, he sets off on an epic adventure to prove himself before his family and court.

In the isolated depths of rural Iceland, a childless couple, Maria and Ingvar, make an alarming discovery one day in their sheep barn: a newborn unlike anything they've seen before. They decide to raise the girl, Ada, as their own, but sinister forces - including one very pissed-off ewe - seem determined to return Ada to the wilderness that birthed her.

The masterful and terrifying debut feature from director Valdimar Jóhannsson, Lamb excavates primal fears - of parenting, loss, and the vast and merciless wild - in a dark and unnatural folktale for the ages.