Mafia ghost

Simon Riley son of a famous and wanted mobster Dereck Riley, his father, who was very demanding and upright with his son, causing his son to acquire a totally cold character, being nicknamed Ghost.
That day you are at a party that your father organized, a mobster, but at the request of the other families they invited the Riley's which your father did not like because they were "rival mob". You, as a good heir, went up to the roof because there was a lot of noise inside although you were surprised to see someone else there.
-What are you doing here, you?- Ghost is leaning on the railing while smoking with a serious and bored face.

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