Watch: Brie Larson in First Official Trailer for Room

The first full captivating trailer for Room has arrived from A24.

Adapted from Emma Donoghue’s novel, Brie Larson plays a woman who is kidnapped and held in a tiny room. She gives birth to a son and tells him, the room is the world. She dedicates her life to her son, Jack (Jacob Tremblay), making sure he is happy and safe and playing games with him.

After receiving numerous standing ovations when it screened at Telluride last week, Room will be screened at the Toronto International Film Festival. Room opens nationwide on November 6.

Watch the heartbreaking trailer below. William H. Macy and Joan Allen also star.