Given the question: Build a movie plot around this: What does Taggart want to investigate Mayor Hostetler for ? Corruption.
The answer is:
NYPD detective Billy Taggart (Mark Wahlberg) is arrested for the murder of Mikey Tavarez, who was believed to have raped and murdered sixteen-year-old Yesenia Barea but "walked" on a technicality. Chief Carl Fairbanks (Jeffrey Wright), goes to Mayor of New York City Nicholas Hostetler (Russell Crowe) with a witness and evidence. Hostetler buries the evidence, and a judge clears Taggart as having shot Tavarez in self-defense. The mayor calls Taggart to his office for a private meeting and calls him "a hero," but still forces him to leave the police.Seven years later, Taggart is living with his girlfriend Natalie Barrow (Natalie Martinez), an aspiring actress. Taggart's private detective business is on the verge of bankruptcy when Mayor Hostetler hires him to investigate his wife, Cathleen Hostetler (Catherine Zeta-Jones), who he thinks is having an affair. Helped by his assistant, Katy Bradshaw (Alona Tal), Taggart learns that Cathleen is seeing Paul Andrews (Kyle Chandler), the campaign manager of Hostetler's rival in the upcoming elections, Jack Valliant (Barry Pepper).At a fundraiser for Hostetler's campaign, Cathleen reveals to Taggart that she knows he has been following her, and advises him not to trust her husband. Taggart delivers to Mayor Hostetler photos taken of Cathleen meeting with Andrews.At a film debut party, Barrow reveals that her real name is Natalia Barea, and that Yesenia was her sister. At the screening, Taggart is shocked at Natalie's sex scene, and strongly disapproves. He had thought it would express poetic love, but finds it akin to porn. Combined with guilt over working for Hostetler, Taggart descends into regular drinking bouts. He argues with Natalie over the scene and about the people she is seeing during her work. She breaks off the relationship.Taggart gets drunk, brawling with strangers while walking the city streets. He receives a phone call from Katy telling him Chief Fairbanks wants him at a murder scene. When he arrives, he learns that Andrews, Vaillant's campaign...