Dr. Lydia Perks, a genetic immunologist, applies for a research grant that could flip the future of autoimmune disease treatment on its head. With a supportive group chat filled with her remote best friends and the experience of nearly a decade teaching at her alma mater, she's ready for the next step.That is, until she witnesses a murder, gets accosted in an alleyway by a vigilante, and receives an ominous text.Now she has the weight of two F.B.I. agents and a morally gray serial killer seeking justice and shadowing her every move.All Lydia wants is to advance her field, catch a killer, and maybe... find love.