#Alive

Both are about a couple survive Zombies town and zombies invasion. Korean one is a movie like a short version of Japanese series.

Both are zombie apocalypse thriller/horror with disease outbreak and a life or death situation.
Both are movies.
#Alive is korean and The Sadness is Taiwanese.
Be aware of trigger warning for rape in The Sadness as the zombies there can't resist the urge to rape and murder (brutal and lots of gore). #Alive has a little bit on friendship/hint towards romance

Me parece que si te gusto esta pelicula, te podría, gustar esta serie, llevan la trama de igual manera, con una buen dote de sentimientos