Alain Mounier was born in Aubenas in the Ardeche. He made his debut in 1977 with a short story in the magazine Circus, published by Glénat. His first album, 'D'un Enfer à l'Autre', appeared in 1983 and was also published by this publisher. He teamed up with Roger Brunel and began the series 'Le Solitaire' in 1985. In 1987, he adopted the pseudonym Ardem for the erotic album 'Les Folles Nuits de Cryptée'. In 1990, he drew 'Tango', with a script by Frank Giroud.
More erotic work was published in the albums 'Confessions Érotiques' (published by Média 1000) and 'Les Trois Soeurs Darnum' (published by Glénat). With the writer Rodolphe, Mounier began series like 'Dock 21' (Dargaud), 'Master' (P&T Productions) and 'Les Abimes du Temps' (Albin Michel). He drew 'Exit' at the publishing house Albin Michel and provided the art for the sixth album of the series 'Le Décalogue' (script by Giroud) in 2002. That same year, he cooperated with Rossi and Bonnet on 'Une Folie très Ordinaire', which was published by Glénat.