A mysterious maid is found dead at the foot of the Collins' staircase, leading to the need for a new babysitter for an upcoming party. Helen, a sensible and friendly woman, meets the Collins' daughter Susan at a discount market and agrees to take the job. Unbeknownst to Helen, Susan has a teenage brother, Mark, who is skilled and intelligent but also restless and cunning. As soon as the parents leave, Mark begins to psychologically torment Helen and his sister with electronic pranks.
Twisted
A troubled teenager, Mark, unleashes his cleverness to control his family and dominate his classmates. When a sympathetic neighbor agrees to babysit, her dark history makes her an ideal target for Mark's sinister plan to unleash a wave of electronic terror.
