Fırat Bulut is a public prosecutor working in Istanbul Courthouse. Fırat, a successful prosecutor, lives a happy life with his wife Zeynep and five-year-old daughter Nazlı. However, one day he wakes up to find himself in prison with no recollection of what happened in the last four months. His last memory is the night he celebrated his daughter's birthday. In shock and horror, he realises that he is accused of murdering his wife and daughter. His second trial is approaching and he is sentenced to life imprisonment. Did he really kill his wife and daughter? The last case that public prosecutor Fırat Bulut investigates before his imprisonment is the case of Barış Yesari, one of the twin brothers, the successors of the Yesari's, one of the most prominent families in the country. A young girl was murdered in Baris Yesari's house. Unable to determine whether his memory is temporarily or forever lost, Fırat Bulut must remember, survive and escape from prison to prove his innocence.