Returning from a long trip abroad, Jun-young, a skilled doctor, comes across a car accident scene: it turns out that the deceased victim hit by a taxi is none other than his beloved daughter, Eun-jung. Then suddenly, everything repeats like a déjà vu: Eun-jung is hit by a taxi. And then the disastrous hours repeat yet again. Lost in repetition, Jun-young notices that he is not the only one trying to save a loved one in the endless time loop. Is there any chance to redesign the gruesome future?