"Russian Elf" - this is what Richard calls Anna, the girl whom his mother intends to be his wife. Anna admits that she is also dealing with an extraordinary man - a knight by blood, and in fact, a wizard, who overnight saved her from long-standing fears and complexes, a brave warrior - an officer in the British Air Force. There is a breed in both of them. But everyone understands it differently. The future mother-in-law sees her as a noble title, for confirmation of which Anna goes to the estate of her ancestors. British friends, like her, who are fond of breeding greyhounds, see the breed in strict accordance with the exterior and national traditions. How does Anna herself perceive this concept? Is there really more breed in former lover Andrei, a disinterested scientist, a tramp, a mongrel, than in Richard?