The mob part of the story hasn't really gone anywhere. Mob boss and wife domestic trouble storyline is less than gripping so far to put it mildly.
It's the story of three detectives and.... Vince Vaughn. Yeah, it's weird that he gets so much screen time even though he seems often just tangentially related to the investigation.
Contrary to many here, I don't mind his acting, his role just feels purposeless so far. We might as well follow around what the police chief does during his day off.