Commercial jingle writer Charlie Harper is wealthy bachelor with house at beach, Jaguar in the garage & easy way with women. But his Malibu lifestyle is interrupted when his uptight chiropractor brother, Alan, arrives unexpectedly with Alan's 10-year-old son, Jake. Alan's wife, Judith, suspecting that she may be gay, wants a divorce.Charlie reluctantly allows Alan & Jake to live with him temporarily, but as it becomes increasingly obvious that Judith is never going to relent, Charlie & Alan's self-obsessed, controlling unmarried mother, Evelyn, offers to let father and son live with her. However, by that time, Charlie has formed a close bond with the clever Jake, even learning a few things about poker from the boy. Charlie also finds out that pretending to be a single dad with a cute kid can be a great lure for women.Meanwhile, Charlie tries to evade Rose, an attractive, offbeat neighbor who had brief fling with him & remains determined to stay in his life by whatever means necessary.