For
Olivia Dejazet (Marina Foïs), a famous
crime novelist teaching writing to a group of small - town teens in Laurent Cantet's The Workshop, that student is Antoine (Matthieu Lucci), an angry young man with an unhealthy interest in stories of mass murder.
Over its pages the killer has scrawled a diary of his own
crimes, providing Kildare with four suspects;
novelist George Gissing, philosopher Karl Marx, music hall favourite Dan Leno (Douglas Booth) and playwright John Cree (Sam Reid), whose music hall star wife Elizabeth (
Olivia Cooke) had just been imprisoned for his poisoning.