You are Billy Davis and you need to lead Chung He to discover the whereabouts in San Fransisco of her husband Chung Ho.
Buttered Toast: the Legend of Possum Crotch was created with Inform and has IFID .
To play a work like this one, you need an interpreter program: many are available,
among them Gargoyle for MacOS, Linux or Windows;
Spatterlight for MacOS;
Windows Frotz or
Windows Glulxe for Windows.
Or you can play without downloading anything by following the 'Play In-Browser'
on your web browser.