My Life?

A 15 year old girl get sent to a mental hospital. She was told 2 codes; 20514 and Blue skys don't make trees green. She doesn't remeber who she was and what is wrong with her. She finds a 18 year old guy named Jake, and his 13 year old sister Sydnie. She meets them in the mental hospital. Jake was told the same codes Lilly was, and together, all 3 of them plan to escape. But there's a lot of security. Will they make it out?