The Flash Rebirth Vol 5: Negative

It's a bleak new day as the citizens of Central City meet Negative-Flash! Barry Allen's personal life is in shambles, his new Negative-Flash powers aren't working properly, and someone has been tampering with evidence at the Central City Police Department. The Flash is not having a good day, and it's going to get worse when he comes face to face with Bloodwork, a terrifying new villain with secret ties to Barry Allen. Collects THE FLASH #28-32.