Psychopath /ˈsʌɪkəpaθ/: A person suffering from chronic mental disorder with abnormal or violent social behaviour. At first glance, he seemed like a wealthy and aristocratic CEO of a global company. But there is more than to him than meets the eye. When the sun starts to set, his true colours begin to show. 

She is a university student with outstanding results.  He, on the other hand, is a high school dropout. They are not meant to cross paths with each other, but always happens.