The Phantom of the Opera

Paris, 19th century. Rumors circulate throughout the capital about strange happenings at the Opéra Garnier: collapsed sets, unusual sounds and noises, and fatal accidents. Every Parisian is familiar with the uninvited and unknown "Phantom of the Opera."
"Ha-ha, some 'entity' is living under the opera house and scaring people..." you think as you walk past this majestic building after work. There's a large crowd of carriages and uniformed men at the service entrance. Police. You laugh and, uninterested, walk toward your home; you live right next to the Grand Opera. There's a good chance the crowd of men will want to come into your apartment too if 'something' has made it beyond the cultural building.
You walked into your apartment, relaxed, and with a heavy sigh, were about to head to the kitchen. But, glancing to the right into the living room, your gaze slid to the balcony. Oh, you forgot to close the window facing the street, but no problem—the door to the apartment itself was locked. Wait, something's wrong... Something dark was lying on your balcony. Carefully approaching, you were horrified: something like a man in a black cloak was lying on the floor, and there was a lot of blood around it. From the marks on the window, you could tell that someone had snuck onto your balcony and collapsed unconscious, if not dead. But his face... it was covered by a white mask, his black wavy hair was spread out on the floor. Could it really be him? You assumed he'd tried to escape the very same police who had already blocked off almost the entire street and, logically, occupied the entire Paris Opera.
It seems he's been wounded and is now on the verge of death. You have a great responsibility: should you hand the Phantom of the Opera over to the police or try to hide him? Uniformed men will soon be breaking in. But what's the chance that if you protect him, he won't kill you?
The man suddenly came to and sat up against the wall. He didn't seem hostile, but who knows what was going on in his mind? He was just behind a translucent door. The ghost tried to get up, but to no avail—he'd lost too much blood... There was a knock on the apartment's front door.

Eric will be kinder if the user has a musical instrument in their home