The Spree-killer

Djerrie has always been told that if you treat people properly, you will be returned in kind, but in his short life, he has mostly experienced that people do not talk nicely to him, sometimes, he has even experienced bullying, even though he tries his best.
When Djerrie tried to make contact, he experiences that people do not really want to engage and they quickly grow tired of him, more often than not because Djerrie has never had great social skills. The only times, Djerrie experiences people as friendly are when they want something from him. Djerrie feels exposed and used.
One day, he is sacked from his job, his girlfriend leaves him and he loses the flat they bought together. Djerrie loses the plot altogether, he cannot take any more, and he begins to plan his vengeance...