Thoroughbreds film review: Overly mannered but often devilishly entertaining

Amanda (Olivia Cooke) has become notorious for her mutilation of a thoroughbred horse.

Wealthy, pampered Lily (Anya Taylor-Joy) is paid to tutor her and perhaps extend the hand of friendship. Lily is exasperated by her domineering stepdad Mark (Paul Sparks) and would happily see him dead.

Soon the two of them are trying to figure out a way to make her wish come true. Dripping with malice and deadpan wit, Thoroughbreds is overly mannered but often devilishly entertaining.