to view the other paths I found a little trick that worked for me, stay true to chelsee right through the game. so you need to ask about chelsee when ever you see the question, mainly louie, police station.
Once you get to the resort where you meet ariel & taylor you have your choice of the 3 paths. reject them both for chelsee, or choose ariel or taylor. chelsee path give you a lovely tear jerking ending, ariel gives you 2 extra locations & nothing much extra with taylor.

paths - somewhere I will find you, double life, out of the past, these I believe to be the best paths. the 2 other paths you may have travelled already.

I kept a saved file just before I returned to sesen, play through this day till the resort.
Don't forget to collect all comics for entry to the secret room