S3·E1 Lucky Break

Brock writes a school play, Dr. Jekyll & Ms. Hyde. Sharon and Nina audition for the title role(s), but Nina wins the lead because her evil Ms. Hyde is so genuinely convincing - and Sharon is assigned the part of understudy. So Sharon tries to get Nina to drop out of the play by taking advantage of Nina's superstitious streak. Unfortunately, things go even better than Sharon had planned.