A nightingale overhears a student complaining that the professor's daughter will not dance with him, as he is unable to give her a red rose;] a lizard, a butterfly and a daisy laugh at the student for doing so. The nightingale visits all the rose-trees in the garden, and one of the roses tells her there is a way to produce a red rose, but only if the nightingale is prepared to sing the sweetest song for the rose all night with her heart pressing into a thorn, sacrificing her life.