Build a movie plot around this: What does Taggart want to investigate Mayor Hostetler for ? Bolton Village

NYPD detective Billy Taggart (Mark Wahlberg) is involved in a nighttime shooting, then is brought up on charges. Captain Carl Fairbanks (Jeffrey Wright) and Mayor Nicholas Hostetler (Russell Crowe) discuss the case as protesters picket the courthouse. Hostetler mentions they have new evidence and next the judge announces the charges are dropped. The Mayor summons Taggart to his office where he seems sympathetic.Seven years later Billy is a struggling PI. He spends a day calling clients to get them to pay up. His assistant, Katy Bradshaw (Alona Tal), tells him the Mayor is calling. Arriving at City Hall, the Mayor is watching a TV news item on his election opponent Jack Valliant (Barry Pepper), apparently the two are close in the polls. Hostetler makes small talk with Billy then gets down to business, he wants evidence his wife is having an affair and he needs the prof before next Tuesday's election. Billy accepts the case and the $25,000 down payment.Billy begins to tail the mayor's wife, Cathleen Hostetler (Catherine Zeta-Jones). Helped by Katy, Taggart quickly learns that Cathleen is seeing Paul Andrews (Kyle Chandler), Jack Valliant's campaign manager.Billy goes to dinner with his girlfriend Natalie Barrow (Natalie Martinez) and her film friends. Natalie reveals they have dated for seven years, ever since her 16 year old sister was raped and murdered. Billy was the policeman on the case and was very supportive to her family.Jack and Paul do prep for the upcoming debate. Jack, a rich liberal, is frustrated and wants some hard evidence to prove the Mayor's corrupt, Paul tries to tell him even without the evidence he has a good chance. Paul has an unnamed source who may get the info in time.Hostetler plays racquetball with Sam Lancaster (Griffin Dunne), the owner of a construction company and campaign supporter, they discuss the election and the billions involved.Taggart attends a fundraiser for Hostetler's campaign at the Roosevelt Hotel, he meets another ex-cop Murdock who says he is security for the...