For me this one is a watchable flick as it gave me an above average experience. I would say the director played tactically to bring in the suspense per episode . Time travel is a favourite recipe of Korean creators and I am a fan of it. But apart from signal and Life on Mars, I couldn't find a something on the same class. I won't place this drama in the same league but would place definitely on the class of Tunnel and Circle. The ML is promising and I am waiting for STRANGER 2 and FL was just okay, her dialogue delivery is not up to the mark, like she has a stiff tongue , almost in every drama. All other character especially the freak girl and the thug is applaudable.