Yo Han was awesome in Black Out earlier this year and I adore Hye Sun in all 9 of her dramas I've watched but for me this, just like Target, was a disappointment. Not a bad film by any means but definitely underwhelming in my opinion. There is a lack of tension that is palpable given where the story needs us to go and it does a poor job on delivery. Whether this is due the writing, directing, editing, music or a mix of these it's down to you.
The cast was good though and it definitely hasn't put me off watching these 2 in the future.