Karianne has a master's degree in documentary directing from Lillehammer University College. She has worked at Indie Film since 2008 as a director, distributor and producer. In 2016, she made her directorial debut with the crime documentary Granatmannen. In 2017 she started Indie Film's theatrical distribution and released The Natta pappa henta oss (2017) and Røverdatter (2018). She has produced Even Benestad's short documentary The Earth is a Chili (2020) and Emilie Beck's feature documentary Veien Hjem (2022). In the fall of 2022, the True Crime TV series Direktøren premiered on TV 2 and was later also shown on DR in Denmark, CMore in Sweden, MTV in Finland and Canal+ in Poland.