Are You Now or Have You Ever Been

After running across it, Angel is vaguely familiar with an abandoned building, the Hyperion hotel. At his request, Wesley and Cordelia discover that Angel used to be a tenant in the hotel in the 1950s. At that time, Angel was pulled into a sticky situation with a woman hiding her past which lead to an unfortunate end. In the present day, Angel and the team attempt to rid the hotel of its demons.