someone tell me the name of this series and i want to find the manga of it, anime goes lik...

someone tell me the name of this series and i want to find the manga of it, anime goes like website pops around midnight for idk victims of abuse by someone, they get delivered a voodoo doll the next day or so i think and uhh theres red string on it. They pull that and bam the person connected to the doll dies