# Directors: Nicolas Klotz
# Release Date: 12 September 2007 (France)
# Studio: New Yorker Video
# DVD Release Date: July 22, 2008
# Run Time: 141 minutes
# Country: France

# Actors: Lou Castel, Jean-Pierre Kalfon, Edith Scob, Mathieu Amalric, Delphine Chuillot
# Language: French

The Human Question (USA) (literal title)
Question humaine, La (France)

Heartbeat Detector is a riveting mystery of blackmail and intrigue, where the long-buried secrets of high-powered corporate executives threaten to bring them down.

Mathieu Amalric (The Diving Bell and the Butterfly) is Simon Kessler, a psychologist working for multinational petrochemical corporation SC Farb. Simon’s tenacious, rigorous and resilient. His successful role in a corporate downsizing proved to SC Farb’s director Karl Rose that Simon is perfect for a delicate situation concerning the firm’s head office in Germany. The Germans want a report on CEO Mathias Jüst, who they fear is unfit for his role. The sinister Mr. Rose wants Simon to secretly investigate Jüst.
But Jüst is no fool. Aware of Simon’s toiling for Rose, Jüst toys with Simon before challenging him with confidential and compromising information that hints at unspeakable crimes against humanity reaching back to WWII.

Following a dubious suicide attempt, Jüst presents Simon with anonymous letters written to him implicating both Jüst and SC Farb for their allegiance to the Third Reich. When Simon receives similar letters, he digs deeper into the tangled web before him. Simon follows a clue and sets off for an impromptu meeting where blackmail, betrayal, murder and the hierarchy of SC Farb’s repressed past will all come to light.

DVD Cover: