Recognized for his experimental and independent works, Kikol Grau began his professional television career, combined with his personal work, closer to the art circuit. His career has been a constant exploration of social and cultural issues. He began in Barcelona Television (BTV) and in 1997 he received the Miramar award for the best local television program of his production in Catalonia, for his program "Por la kara TV" (Clot TV), produced with Jorge Rodríguez, Pol Turrents, and J.A. Bayona. He received a special mention at the Zemos98 Festival (2002) for the most acid television for his program "Gabinete de crisis", where he worked as scriptwriter and director together with Félix Pérez-Hita, Arturo Bastón, and Andrés Hispano. With this series of programs, he won the 1st Animalario Festival of Seville (2007).

He has worked completely independently for the TVE2 program Metrópolis, making 6 programs about current musical events in different Spanish regions, Madrid, Barcelona, Euskadi, Galicia, Balearic Islands, and Andalusia, and two cultural programs about the world of cinema and video art, El otro cine and Agentes independientes.

Grau has left a significant mark on the contemporary videographic scene. His first film, Objetivo Gadafi, illustrates the Arab Spring in Libya through newsreel footage. He filmed a trilogy on Basque punk in the 80s, consisting of Las más macabras de las vidas, Inadaptados and No somos nada, films that have had a great run in national and international festivals (SEFF in Seville or Cine Distrital in Mexico City) and reaped awards at festivals such as the Dock of the Bay in Donosti. This trilogy is followed by the Magnicidios españoles y Poe, a film constructed from five short films that explain the assassinations of General Prim, Cánovas, Dato, Canalejas and Carrero Blanco mixed with short stories by E. A. Poe. Montezuma-Grau. Descendencia mortal, is his first fantastic genre film (premiere at the Gijón International Film Festival, 2017). In addition, his work has been the subject of an anthological exhibition at the Virreina Centre de la Imatge in Barcelona, under the title Dame Pank and Dime Tonto, accompanied by the premiere of Los demenciales chicos acelerados: Barcelona y alrededores, which explores the punk scene in his hometown. He has produced with Filmin the second part of his particular vision of the recent history of this country, the collective film Histeria de Catalunya (Atlantida Festival in Palma de Mallorca, 2018). 

After making 12 experimental films with archival materials and his own recordings, in 2024 he presents his first recorded film, Turismo de guerra. De la guerra también se sale, winner of HAMACA's Contrapicada production call, the first prize in Documenta Madrid's Corte final, the support of Memorial Democràtic and finalist in the laboratory La Inesperada.