Lena Tsvetkova works as an assistant to the famous surgeon Lazarev. She agrees to become his wife. She may not like the professor, but she respects very much and wants to be close to such a professional and a good person. But suddenly falls in love with a desperate guy named Ivan. She is already ready to tell Lazarev that there will be no wedding, but she learns that Ivan is the son of the professor. And they have a very difficult relationship, which she can finally destroy with her confession. How to be Lena? Save love or sacrifice it for others?