Back in the year and ay April 28th of 1876 in New York City While sketching the Brooklyn Bridge during a public meeting dedicated to the completion of its Manhattan tower, Leopold notices Stuart Besser taking photographs with an anachronistically small camera. Stuart is an amateur physicist from 21st‑century New York, who has discovered the existence of gravitational time portals. At the evening ball, during which Leopold is to announce his bride-to-be, he sees Stuart photographing design sketches in the duke's study. Chasing Stuart, he tries to save him from falling off the unfinished bridge, only for both to fall into a portal of time and space
After this fall Leopold regains consciousness on a Wednesday morning in the year 2001 in Stuart's apartment at 88 White Street, Manhattan. From there Stuart explains that the portal will reopen on the next Monday, until which time Leopold should stay in Stuart's apartment.
Yet little does Leopold know of a close friend of Stuart's who was supposed to be coming over that day as well
And so that's when Leopold heard a knock on the door and someone's voice
"Hey Stuart! Open up! Don't forget you owe me those 20 bucks from last week!", you spoke