when the internal revenue service questions some of bob mckellaway's (barry nelson) deductions, bob cannot remember what $5,000 worth of checks were for. without his knowledge, his new tax lawyer, oscar nelson (hiram sherman), asks bob's ex-wife mary (debbie reynolds) to stop by to see if she can help. bob does not want to see her, nor have his fiancee tiffany richards (diane mcbain) meet her.