- Original title: Koko i duhovi
- Type: feature film
- Year: 2011
- Genre: Adventure, Family
- Country: Croatia
- Language: Croatian
- Length: 90 min
- Directed by: Daniel Kusan
After a young boy moves from Zeleni vrh to Zagreb, he starts to reveal mysteries about his new house. Soon Koko and his friend, Zlatko, are deep into their investigation...
- Screenplay: Daniel Kusan, Ivan Kusan
- Cinematography: Mario Sablic
- Production design: Hrvoje Pervan
- Music by: Dinko Appelt
- Edited by: Slaven Zecevic
- Art director: Ivan Veljaca
- Costume designer: Emina Kusan
- Make-up artist: Mojca Gorogranc
- Special effects: Branko Repalust, Kristijan Repalust
- Cast: Antonio Parac, Kristian Bonacic, Nina Mileta, Filip Mayer, Ivan Maltaric, Ozren Grabaric, Dijana Vidusin, Neda Milic
- Producers: Ankica Juric Tilic
- Co-producers: Josip Popovac