After his mother left his father for another man, Ömer’s perception of women was forever damaged, and he considers them unreliable, untrustworthy and even dangerous. The only woman he has time for is his beloved sister Ayse, for whom he would do anything. Ayse herself is a great romantic and wants nothing more than for her brother to be happy and find love for himself. When she falls ill, and with only months to live, Ömer understands that the only way for his sister to die happy is for him to be married

Cazibe, an Azerbaijani immigrant, marries Kemal to become a Turkish citizen. Ms. Gül who deals with illegal marriages arranges this marriage which will last for 3 years according to the agreement. Kemal receives 10,000 Turkish liras from Cazibe. But Kemal has a girlfriend, Simge, who is the daughter of Kemal's boss. Kemal's boss does not know that Kemal and his daughter are in a relationship. Simge thinks that Cazibe is Kemal's maid. However, Ejder is the foreign marriage detective and he is trying to find proof that Cazibe only married Kemal to become a Turkish Citizen.

The word "Yahşi" comes from Azerbaijani and means "beautiful, nice, attractive". "Cazibe" means seduction.