"The Night of" is a TV-series in which every next episode tells a story that is related to the previous ones. Here "of" is used in the possessive case. The sentence is incomplete and grammatically incorrect standalone but as a title it makes sense since each episode can be "The night of whatever-is-going-to-happen-in-the-episode":
- The night of the murder.
- The night of the return of the murderer.
- The night of the uprising in the city.
Edit: The IMDB says that the plot is "After a night of partying with a female stranger, a man wakes up to find her stabbed to death and is charged with her murder."