If you like this then the film is an adaptation of the manga done by Junji Ito.
He's done several horror manga's that have been adapted.
GYO.
GYO (The Death Stench Creeps): Volume 1: Amazon.co.uk: Junji Ito: Books
adapted into an anime that changes some of the characters around but is still worth watching...
gyo.jpg http://www.amazon.co.uk/GYO-Tokyo-Fi...1&keywords=gyo
He also did MUSEUM OF TERROR
Museum of Terror Volume 1: v. 1: Amazon.co.uk: Junji Ito: Books
Featuring one of his most iconic creations TOMIE. Which has been turned into a series of horror movies none of which are as good as the manga (but still worth watching.)
tomie1.jpg tomie2.jpg tomie3.jpg