The horror movie was so scary it could curdle your blood.
Этот фильм ужасов был настолько страшным, что мог заставить кровь стынуть в жилах.
Definitions
To curdle (someone's) blood means to frighten or horrify someone intensely, often to the point of making them feel a chill or extreme fear. The phrase is commonly used to describe something that is extremely scary or shocking.