Lionel Baier was born on 13 December 1975 in Lausanne, into a Swiss family of Polish extraction.

From 1992 onwards, he programmed and co-managed the Rex Movie Theatre in Aubonne (Switzerland).

Between 1995 and 1999, he studied at the Faculty of Arts at Lausanne University. Since 2002 Lionel Baier has been in charge of the cinema section at ECAL (University of Art and Design, Lausanne). His first two fiction features, "Stupid Boy" and "Stealth", were internationally distributed in several European countries as well as in the USA, and were also shown at countless festivals around the world. They were warmly received both by the critics and the public.

"Another Man" is Lionel Baier's third fiction feature.