The Dog in the Manger (Russian: Собака на сене, romanized: Sobaka na sene) is a 1978 Soviet musical-comedy film directed by Yan Frid based on the eponymous 1618 play by Lope de Vega.

[1] Teodoro, secretary of the Countess Diana de Belflère, is in love with the maid Marcella.

The lady suddenly feels jealousy awakening in her as she watches their romance develop.

Teodoro has no choice - he has to leave Diana's house and go to seek happiness in some other place although the souls of lovers belong to each other.

And Teodoro suddenly turns out to be an aristocratic nobleman, in no way inferior in his ancestry and wealth to Diana.