Graveyard Clay (2007)

This a story about an obsessive hatred that started as a case of jealous rivalry between two young sisters, resulting in a broken heart as Neil got the upper hand on her sister, Caitríona, stealing away from her the man with whom she was in love. Caitríona never forgave her sister, nor would she forgive her as long as she lived, or indeed after that. The hate she has for her sister has consumed her to the extent that it guides her every step, in this world, and in the next!