"On a Lark" Idiom, meaning to do something on a whim or just for fun.African American savant Lark Chambers is young, beautiful and brilliant, an interpreter formerly trained by the United Nations. Fluent in seven languages, she's at the top of her game at Linguistics, Interpreting, Sign and Translation (LIST), the company that assigns her to Dario DiRossi, a multi-billion dollar textile heir, and currently her devastatingly handsome boss...