Acouplehiresalive-innannytowatchtheoffspringwhiletheywork.Atfirst,everythinggoesperfectly,butwhenanunsafeincidentmeanstheparentsnolongerwantthenannyaround,theyfindoutthisnannyissavvyatnotbeingevictedfromherlive-insituation.Sosavvy,infact,thatshecanmaketheseparents'livesatruenightmare.