Dementamania They say there's no harm in daydreaming... A frustrated office worker finds himself caught between the realms of his deranged imagination and the mundane reality of his everyday existence. Details Casts Galleries Posters Title Dementamania Release Date 2013-08-23 Runtime 01 Hours 25 Minutes Genres Thriller Horror Production Companies Green Screen Productions, Gloucester Place Films Production Countries United Kingdom Geoff Bell... David Snodgrass... Vincent Regan... ... Kal Penn... ... John Thomson... ... Matt Healy... ... James Oliver Wheatley... ... David Macey... ... Samuel Robertson... ... Richard Ashton... ... Aaron Cobham... ... Rebecca Reaney... ... Melissa Wells... ... Holly Weston... ... Anthony Cozens... ... Richard Crehan... ... Original Size (3840x2160) Original Size (946x1419) Original Size (1000x1500)