After moving to an eerie old house in the country, nine-year-old super sleuth Roxy Hunter stumbles into a world filled with unsolved mysterieus, secret plots and spooky spirits! Now, Roxy and her best friend and boy genius Max, must race to save their home, re-unite a lost love and uncover the true villain. Is it the Moody Ghost...or something even spookier?

La detective favorita de Serenity Falls vuelve a la acción cuando Roxy Hunter (Aria Wallace) se encuentra en medio de otra espectacular aventura. Mientras la ciudad se prepara para una gran fiesta, un valioso cristal desaparece de la caja de seguridad del sheriff. El principal sospechoso es el nuevo amigo de Roxy, un chaman que vive en el bosque, pero ella no esta segura de que este sea el aguafiestas que todo el mundo piensa. Así que con una pequeña ayuda de su amigo Max, Roxy se mete en el caso y decide resolver el misterio del cristal desaparecido.

Roxy is at it again when, in pursuit of a local journalism award, she brings home a mysterious amnesiac who was found soaking wet outside of the local coffee shop. After ceremoniously naming her ANNIE NONYMOUS, Roxy takes the young lady home and finds that even the most common household item is a complete mystery to Annie. When Annie returns dripping wet from the lake several nights in a row, Roxy determines what is abundantly clear to her, Annie is a mermaid. A mermaid who has to find her way home.

It's Roxy's first Halloween in serenity falls and it looks like it's going to be a bust until Roxy discovers that her classmate Stefan is actually a vampire from Transylvania...or so she thinks. The truth she comes to find is actually much darker.