Bachelor mother

Unemployed Polly Parrish impulsively picks up a baby left at orphanage doors at Christmas. Everyone assumes the foundling is hers, including Polly's playboy ex-boss, who offers her a job if she'll live up to her maternal duties. A paycheck would be handy, so Polly complies. Then the boss's tycoon dad assumes the infant is his secret grandson, and things really spin out of control.