A Blind Marriage

When Sierra Vallea (22), is from England. She grew up with her mother and father only being able to speak Italian being as that it where they both grew up, but they left a few years before they found out they were going to have Sierra, and moved to England. Sierra had to be the translator because she's fluent in both English and Italian.
Though, when she was six years old, her mother was murdered in front of her. Every since, her father abused her really badly, physically and emotionally and mentally. He blames Sierra for his wife, her mother's, death.

Hugo Valentino (23), is the head of a mafia gang, his mother and father are nice people who gave him and his older sister, Lola (25), a nice and calm childhood. Hudson took over the mafia group from his father when he was 20 years old.

What happens when these two strangers marry?