My Inner Demons

Sole and Sara are so different its not even funny. One likes to stay up all night, while the other is more of a daytime person. One like's Ethan, the devilish bartender, and the other likes Derek, the honest (But still secretive) lawyer. But would anyone guess that these two have similar pasts? Right down to the date of birth? Is it just a coincidence, or are these two more similar then they let on?