Synopsis by Hal Erickson
Lauri Hendler guest stars as Lauri, teenage houseguest of Mr. and Mrs. Roper (Norman Fell, Audra Lindley). The three roommates agree to babysit Lauri while the Ropers are away, never dreaming that the somewhat lonely girl might have a terrific crush on Jack (John Ritter). In fact, Lauri is so enamored of Jack that she begins plotting and planning to "get rid" of Janet (Joyce DeWitt) and Chrissy (Suzanne Somers). As if things weren't complicated enough, there's a teenage boyfriend in the equation.