This works extraordinarily well as an action flick with a heart.

Rating: 9/10 (3 April 2017)

First, let me say that I am not a fan of the zombie genre. World War Z was okay, I thought. The Walking Dead bored me.
This Korean movie will likely (like Oldboy) get a US remake so the snowflakes who are upset by subtitles will get to see a Hollywoodized version at some point in the future. No doubt the plot will be changed through committee interference.
In this movie, our protagonist isn't the most likable person... and don't expect Hollywood to leave his character arc untouched.
Enjoy this one in its present form. It does an excellent job with a growing feeling of dread that turns into an all out chase film with twists and surprising script decisions. Some old character stereotypes are worked in, but there are plenty of unexpected turns and clever solutions.
Like The Host, another Korean film I particularly like, there's family drama at the core. But it doesn't overwhelm the sheer ferocity of the action.