The Serial Club.

The Serial Club is the story of three very different outsider teens. Hudson, the brain, likes his technology and solving puzzles Cai, the heart, can see right through you to the real person Sage, the spirit, helps bring the group together Every day, after school, they gather at Hudson's house to eat cereal and watch true crime shows. After a mysterious package is delivered, a child's finger, and they receive no help from the authorities, the kids begin investigating their neighbors for various escalating crimes. The series of investigations culminates with a showdown of wits between our young heroes and a deranged mind they have been hunting since the beginning.