Let the Right One In S01 E01 Anything for Blood

"Anything for blood."

After ten years away, Mark Kane and his daughter, Eleanor, return home to New York City, hoping to find a cure for a rare affliction. Meanwhile their neighbor Naomi Cole, an NYPD Homicide Detective, tries to balance investigating a brutal murder at work with raising her son Isaiah, whose newly sober father has suddenly come back into their lives. Claire Logan, a brilliant scientist, receives a devastating call from her estranged father, summoning her home.