Questa serie segue due donne formidabili mentre affrontano l'oscurità che si cela nella società. Una è una consulente di sicurezza freelance specializzata in stalker, mentre l'altra è un'agente speciale dell'FBI. Insieme, navigano per le strade grintose di Los Angeles, combattendo il crimine e proteggendo gli innocenti. La loro determinazione e i loro metodi contrastanti forgiano una avvincente partnership investigativa.
Working alone, Abby Sinclair hunts stalkers, infiltrating their lives, uncovering their dark desires, and bringing them down, and her new prey is her next-door neighbor, Raymond Hickle, whose twisted obsession with a beautiful TV news anchor is about to explode.
Three years after the serial killer Mobius murdered FBI agent Tess McCullum's lover, he resurfaces in Los Angeles with a chemical nerve weapon that could kill thousands, and Tess is determined to do whatever it takes to stop him.
Tess McCallum, a skilled FBI agent, is reluctantly paired with a new partner while pursuing a ruthless kidnapper known as the "Rain Man." This criminal traps victims in Los Angeles' storm drain system, demanding ransom payments from the city. Meanwhile, Abby Sinclair, a freelance security expert with a knack for unconventional methods, is also on the case, aiding a potential target who distrusts law enforcement. As a rainstorm looms and time runs out, the duo must collaborate to unravel the mystery and save lives in a gripping tale filled with suspense and unexpected twists.