The shoe dropped Wednesday when the Internal Revenue Service and other law enforcement authorities raided Pure nightclub and Pure Management Group headquarters, confiscating a number of computers. Cash-heavy operations are known to get the attention of the IRS.

Sources have been telling me that doormen at several clubs are clearing $8,000 to $10,000 a night before they share tips. So much cash is pouring in that some doormen are making $400,000 to $500,000 a year, several nightclub executives told me.