what my father is suffering from?

[brotesque]

Now he is about 50 and his behavior is really terrible. He doesn't act like in his age. He use harsh words in front of me or when he was angry with me when I was little. He acts like an asshole in front of me and my mom but like a fake angel with other person, especially his parents.
He always dwell in his past. He comes from rich parents. He is the eldest of 7. He dropped out from university. The reason keeps changing. My mom tells me that my grandparents told him to take care a business since he is the eldest. My granddad tells me he doesn't want to continues. My father tells me that his parents insist him to take care the business eventhough he wanted to finish his study. And he put all the blames to his parents but the thing that makes me hate him a lot is he is so nice to his parents but an asshole to me and my mom. He is act like he is the boss and dislike us if we criticise him. And he also like to told me that I should accept criticism.
But actually I wanna ask this. Since I was little, he like to angry by himself. 'I want to kill poor chinese''everyone should be killed'
I only know this so far because it is the words that he often use when he is self-mad. Lately no more because we have a maid now. He cant self-mad in front of her.
Dont ask about my mom. She is too stupid and young to understand the impact on me. I want to convince everyone he has a mental illness and send him to the scariest mental asylum so he can stop bugging me. He likes to boast about his 'fame' in facebook, his power of curing people, his far richer than him friend (we are not rich, but middle class, not up not low) and telling me to read bible because he thinks God can make him rich if he believes in Him and blame (also hates) Buddhism because he thinks his misfortune life is Buddhism fault (his parents faith). I convert to Catholic because my poor young soul is misguided by him

[?]

Maybe a midlife crisis

[cuz.i.am]

Either a midlife crisis or he's just very narcistic and has anger issues

[Fake Genius]

Yeah, you see his true nature when he is with you. You're right according to your information. As the eldest son in the family, he seems to have bipolar between his being eldest and being a university dropout.

He's nice to his parents for a reason. He might be expecting something from them - something to do with the business.

But the way you see your parents will regret you one day.