What a waste of Shin Ha-kyun's talents.

His character is a bland cliched "tsundere man with trauma", who takes over an audit team at a construction company and tries to whip it into shape. He is of course pursuing his own secret investigation into [INSERT CHILDHOOD TRAUMA DUE TO CHAEBOL CORRUPTION HERE].

He's joined by corrupt dimwit Lee Jung-ha, who specialises in the art of talking emphathetically to people who were totally going to dispose of a dead body in a reservoir to cover up their death but had second thoughts only when they realised they were still alive.
Boy I'm glad he's here to humanise his new robotic, cynical boss, who we're told must be "really lonely" because he actually does his damn job.
The only thing missing is for this Candy to be a woman so he and his new bromantic boss can get married at the end.

Forest of Secrets this is not.

I'm out.

The acting powerhouse that is Shin Ha-kyun deserves better.