R.L. Stine's The Babysitter

Episode blurb:"Kelly and Katai talk RL Stine’s THE BABYSITTER, and they answer the tough questions: Is Jenny a pedophile? Is Mr. Willers actually a rogue cop? Is Mrs. Hagen having an affair with Mrs. Spalding?"

Description
From Goodreads:"From the minute that Jenny accepts the Hagen baby-sitting job, she knows she has made a terrible mistake. First there is the dark and gloomy Hagen house, filling her with dread and horror. Then the crank phone calls start. When she finds a threatening note in her bag, she realizes that this isn't a harmless game."