Quand sa sœur trop possessive complote pour lui faire rompre ses fiançailles, un jeune homme s'efforce désespérément de protéger sa promise en déjouant ce plan sournois.
Ecem and Rahmi, who are at the very beginning of their relationship, live in the basement of an apartment in Istanbul. Their life takes a different turn one night when Ecem's ex-boyfriend Kazim comes to their doorstep. The anger of Rahmi, who is very jealous, causes a night full of regrets.