There was this PC FMV game back in the early 90's where there's this woman doing all kinds of things that gets herself killed and all you do is flip the right switches at the right time and enter 3 digit codes.
One of the earlier games I had on a CD-ROM. Back then it wasn't a disc tray. You eject an entire disc jewelcase-like thing and put your cd inside the case and shove it back in like a floppy disk.
Good guess! I looked up some screenshots but they didn't look quite like how I remember though.