Drowning Mona is a 2000 American crime comedy film starring Danny DeVito as Wyatt Rash, a local police chief from Verplanck, New York, who investigates the mysterious death of Mona Dearly, a spiteful, hard-drinking, loud-mouthed, abusive woman, hated by all who knew her, who drove her son's car off a cliff and drowned in a river. Wikipedia