Who is she? Why does she do it? Nico Muhly's musical drama answers all the questions from Winston Graham's 1961 novel. The story's baffling central character is a glamorous and troubled woman in late-1950s England who moves from job to job, changing her look

and identity, compulsively embezzling money from employers. In a flawed society, with both the individual and the social milieu, she conceals her inner turbulence behind sophisticated faÁades.

Mezzo-soprano Isabel Leonard sings the enigmatic Marnie, and baritone Christopher Maltman is the man who pursues her - with disastrous results. The opera premiered at English National Opera, London, 2017, and is the second of Muhly's operas commissioned by the Met. The Met: Live in HD Marnie shows this Sunday, 11: 30 a.m. at Palace Cineplex.