Movies: Employer employee relationship

A renowned and widowed otolaryngologist hires a young, penniless poet as live-in nanny for his three rowdy – but musically gifted – children....

An old acquaintance of newlyweds shows up at their doorstep. They seem glad to see her, but what they don't know is that new guest harbors a deep grudge against them for something that happened years before, and is plotting her revenge....