She is a prize-winning pianist and an equestrian.

Alyssa Callaway ( Ashley Olsen) is a rich girl and the only child of Roger Callaway, the owner of Camp Callaway, the summer camp for the orphans.

She has the idea for herself and Alyssa to switch places for a couple of days.

Amanda Lemmon ( Mary-Kate Olsen) is an orphan.

After some encouragement from the girls, Roger and Diane kiss, and the four of them board a horse-drawn carriage, driven by Vincenzo, to take a ride through Central Park. Humiliated, Clarice moves to storm out of the church again, but Alyssa embarrasses her even further by stepping on her wedding gown, causing the skirt to rip off.Īn incredulous Roger learns that Alyssa has been with Diane all this time and it becomes apparent to them that Amanda and Alyssa had orchestrated their meet-ups all along, about which the girls are extremely smug. As Clarice storms down the aisle, the real Alyssa steps out from behind Diane, and Clarice claims it is a 'conspiracy' that there are 'two of them.' She tries to take this new opportunity to slap Alyssa, but Diane steps forward in time, barking at her to 'Back off, Barbie,' and calmly informs her that she has something in her teeth. Furious, she slaps him and tries to do the same to 'Alyssa,' blaming her for sabotaging their relationship, but is stopped by Vincenzo. In that moment, he realizes he has fallen in love with Diane and confesses this to Clarice.

Just as Roger is about to say 'I do,' Diane bursts into the church with the real Alyssa behind her, and Roger falters at the sight of Diane, recalling all the good times they had together.

In the meantime, Vincenzo and Amanda work to stall the wedding. He contacts Diane and summons to have the real Alyssa picked up from the Butkises' salvage yard. Roughly two hours before the wedding, Amanda, who poses as Alyssa, proves to the family butler, Vincenzo, that she is not Alyssa. Alyssa discovers the only reason the Butkises had adopted so many kids was to put them to work in their salvage yard. Soon after, Alyssa, while posing as Amanda, ends up being adopted by the Butkises without Diane's knowledge, and is taken away by child services.

Upon having spied Roger and Diane laughing and swimming together in a lake one afternoon, Clarice manipulates Roger into moving the wedding up from the next month to the next day. Desperate to set them up, the girls arrange many 'chance' meetings between Diane and Roger, hoping that they fall in love. While Amanda enjoys Alyssa's wealthy lifestyle and Alyssa gets to experience being a kid at summer camp, the two get to know the other's parental figure and discover that Roger and Diane would be perfect for each other. The identical strangers long for the other's life and decide to switch places. Alyssa Callaway is coming home from her school piano recital competition, only to find that her wealthy father, Roger, is about to marry Clarice Kensington, an overbearing self-centered gold-digger socialite who plans to send Alyssa off to boarding school in Tibet after marrying Roger. Diane would like to do so, but authorities will not let her because of her low salary and unmarried status.

She actually wants her child-loving social worker, Diane Barrows, to adopt her instead. Amanda Lemmon is an orphan, and she is about to be adopted by the Butkises, a family known to 'collect' kids. Two unrelated young girls who happen to look identical meet by chance.

It takes two 1988