THIS DRAMA IS NOT A DRAMA like in other k-dramas you see only romance and comedy but in this, you'll see suspense plus horror. I am in love with this series, it will keep you avid till the end and you never get bored. I actually watched this because of PARK HYUNG SIK.He never upset us, his all dramas are beautiful and perfectly done I love his acting and his hard work towards the drama I waited for this comeback drama 'HAPPINESS' for around 2 years as I already told you I'm his big fan but the rating is not because I am his fan I actually like this drama and if you are confuse whether watch it or not i say definitely go for it, you will love it.