Otis Quinn's mistress had finished washing the dishes and made tea for Uncle Woo and Otis before finally entering the master bedroom. She then lay down on the bed and began to read a book.
At that moment, Yusuf Zuck finally made his move. He deliberately made noise as he ascended the stairs and knocked on the door of room 503.
"Bang, bang, bang~" As the three knocks sounded like the striking of a bell, both Otis Quinn and Uncle Woo stood up at once, and even Otis's mistress immediately got out of bed and stood by the door inside the bedroom, listening intently.
Uncle Woo made a gesture to Otis Quinn and then stealthily hid behind the curtains in the living room.
"Who is it?" Otis Quinn called out to the outside.
Yusuf Zuck did not reply to Otis Quinn's question but instead placed his palm over the peephole of the security door.
When Otis Quinn peered through the peephole, he too saw nothing but darkness.