While conducting telehealth appointments, Rachel treats a patient with a human bite wound. Meanwhile, her upstairs neighbor, Lily, finds herself in a dangerous situation with one of her clients.
Lily figures out what to do with her dangerous client. Rachel attempts to gather evidence from her various patients to present to her husband, who works at the CDC.
Rachel enlists Lily's help with an important task in order to further her mother's research. Zach learns surprising information from hi CDC colleague and former lover.