The Pleasantville Strangler - S1-E6
Revealing mistake: During the final fight, Merton gets strangled against the wall and hits the statue's face. The face moves less like rock and more like a mask.
Stalk Like An Egyptian - S1-E10
Revealing mistake: At the beginning when the Egyptian mummy puts the ring on his finger, the tip of the finger bends like a glove.
Answer: She left with her new boyfriend to go to a English college.