Exactly like The Ultimate Note, The Journey Across the Night also needs a second season.
Bad-boy/Emo Li Jia was so hot.
It reminded me of Kill Me, Heal Me with Ji Sung.
As a computer-wizard, he should have taken revenge on that sociopath/scumbag of a doctor by destroying him, from the inside-out. I am pretty sure; there must be plenty of evidences in that computer that could completely destroy his reputation, as a doctor in the psychiatric field.
Destroying his office and attacking him on the streets is not revenge but just vandalism and bodily harm.
In conclusion, Li Jia is suffering from DID (Dissociative identity disorder).
It seems that he was kidnapped as a kid. Worst than watching his sick mother loosing her grip on reality; I think he might have been sexually assaulted and physically abused...

*We most definitely need a second season.
Joseph Zeng portrayed these dual characters to perfection.