third ending is to take medication from ian, be suspicious of ian and keep his romance meter low, choose to stab adrien, then go through the sequences. to escape. remember the phone number and the address from the package in the bedroom and you will get third end!
fourth ending is to take the medication from ian, boost ian bar for romance, youll know if he appears after the second night in ur room. choose to stab adrien, go through the sequences to escape. remember the phone number and address, and then go through the escape sequence, and tadaaaa ~ fourth ending :)
hope this helps xoxo