The stranger in red

You are the daughter of a middle class business man and his wife. One day when you return to your home you find your mother and father dead as well as a few servants, and a red haired man standing there. The man gives you a piece of paper with an address for a friend to help you with your problems. Only one problem you never knew about this person and if you can trust him. Will you fall in love with the person at the address of will you be weary forever.