Twins in all but disposition, Netty and Letty quarrel continually. Letty goes to spend a few days at a friend's cottage at a nearby summer resort. Netty also goes later. Freddy meets Netty and they are mutually attracted. They are not allowed to be together much, however, as they are always being interrupted. The other girls decide to play a trick on Freddy. They send him a note saying Netty has found a place where they could have a quiet chat. They send him to where Letty is quietly reading. Freddy sits down beside her. She thinks a stranger is trying to flirt with her and abruptly leaves him with a disdainful glance. He is astounded, and the others, hiding nearby, are convulsed with laughter. Freddy follows Letty until she calls an officer and he has a hard time explaining matters to avoid being arrested. The policeman finally lets him go, and while seated on the hotel porch, Netty, all dolled up for his benefit, appears, and that young gentleman, instead of looking pleased, as she expects, gives her a decided cold shoulder and leaves the place. She learns the meaning of the occurrence from a bellhop and she sends Freddy a note asking him to meet her on the beach and all will be explained. After some hesitation, his love for Netty proves too strong and he He makes another mistake and causes all kinds of trouble when he again gets the girls mixed. Finally, he happens to confront both girls at once. Netty explains that they are twins, Letty apologizes to Freddy, then all walk off arm-in-arm. The other girls look after them pleased with the success and happy ending of their little joke. All then agree it is hard for anyone to tell Netty from Letty.