Sylvain was born in Thionville.. She was an independent journalist for Le Journal du dimanche, then worked as a corporate reporter in the steel industry for the Usinor group. She was also in charge of patronage at Usinor. She received the following awards:
:fr:Prix Sang d'encre|Sang d'encre prize for Vox in 2000.
:fr:prix Michel-Lebrun|Michel-Lebrun prize in 2001 for Strad
:fr:Grand prix des lectrices de Elle|Grand prix des lectrices de Elle in 2005 for Passage du Désir
And the award for best french police novel 2011 by the LIRE magazine for Guerre sale.
Career
Sylvain worked as an independent journalist for Le Journal du dimanche, then as a corporate journalist managing sponsorships in the steel industry at the Usinor group. Sylvain began writing in 1993 during her first stay in Japan. The city of Tokyo provided the setting for her first novelBaka !. Her early works feature the private investigatorLouise Morvan and, beginning with the second novel in the series, her partner, commissioner Serge Clémenti. Following this, Vox, in 2000, and Cobra introduce a trio of officers of the Brigade criminelle led by the commander Alexandre Bruce. Vox features a serial killer who dreams of downloading his mind into a machine.She was awarded the Sang d'Encre prize in 2000 for the novelVox, and the Michel Lebrun prize en 2001 for Strad, which involves performers who use their body as a means of expression. In 2004, she started the Ingrid et Lola series centering on the unofficial investigations of the American masseuse Ingrid Diesel and the retired commissioner Lola Jost. These stories include a mix of traditional crime fiction and humor. She was presented with the Elle magazineGrand Prix des Lectrices in 2005 for Passage du Désir which features Jim Morrison, the lead singer of The Doors. I,In 2013, Sylvain contributed to the short story collection Femmes en colère along with Didier Daeninckx, Marc Villard and Marcus Malte. Also in 2013, she released Ombres et soleil, a direct sequel of Guerre sale. Sylvain's novels have all been published by Éditions Viviane Hamy, in the Chemins Nocturnes collection. Her stories have been translated in almost a dozen languages, including Russian and Japanese.