Charles Cabot, half-owner of the St. Gregory Hotel, introduces Peter to Lee Jordon, who represents a resort conglomerate interested in buying the hotel. Peter resists any thought of a sale because running the hotel is the only life he wants. Lee is willing to settle for Charles's share and day-to-day participation in running the hotel. Peter obtains a bank loan to buy out Charles's share of the hotel; though Peter's offer is less than Lee's, Charles sells his share to Peter, making Peter the sole owner of the hotel. Two young married couples share a large suite for a brief vacation in San Francisco. Jonas Robinson, a nose-to-the-grindstone accountant, is married to Melissa, a frivolous fun-loving blonde; and journalist Sean Marris, a rakish bon vivant, is married to Kate, a prim, practical woman. A daytrip turns into an impulsive fling for Sean and Melissa, which draws Jonas and Kate together for a more serious affair.