He declares: “My dear grandsons… Erol and Onur… whichever of you gets married and has a child before the other, will get my whole share in the company, which is worth 600 million Turkish Lira…” otherwise known as big money! Desperate to get their hands on the cash, their mothers, Betül and Yıldız, rush to set blind dates for their sons.

Forced by his mother, Onur goes to his blind date. There he meets Lale, who was actually there for her own blind date with a young doctor (also called Onur!). Mistaking each other for their expected blind dates, they start to chat. As a result of Erol drugging their drinks, Onur and Lale get drunk and have fun all night long, finally falling asleep in room No.309 of a hotel.

In the morning, unable to remember anything about the crazy night, they just split, agreeing not to see each other ever again. However, three months later, Lale finds out she is pregnant. And when Onur’s grandmother hears the news, she declares that they are obliged to marry. What will this mean for Erol?