There is no up and down. The episodes are sinking towards the bottom each after episode. If you are not in good mood in real life or full of depressing and suffocating matters, please do not watch this series. Even they prescribed the show is dark comedy, it is totally not suitable for people like me. We are facing difficulties, work stress, adult life crisis and poverty in our daily life. Watching the series gonna add more stress and you will regret of wasting your time.