In the third installment of "Expats," titled "Mid-Levels," we delve deeper into the lives of the central characters, each grappling with their own demons and the aftermath of Gus's disappearance. The episode provides a stark look into the isolation and despair that Mercy, Hilary, and Margaret are experiencing, as they navigate through their personal labyrinths of grief and uncertainty.

The episode opens a window into Mercy's solitary life as a caterer in Hong Kong, a city teeming with multiculturalism yet alienating for her. Her daily routine is devoid of warmth, as she returns to her apartment each day with no one to look forward to seeing. Mercy's loneliness is palpable, and her past weighs heavily on her as she searches for lost children in Hong Kong, hoping to find Gus's name among them. Her struggle to fit in is evident, as she longs for intimate connections that seem just out of reach.
Mercy's encounter with Charlie, a fellow Korean, offers a brief respite from her isolation. Their conversation on the subway hints at a potential friendship, but it is short-lived. At a karaoke party with Charlie's friends, Mercy feels like an outsider once again, as the group switches to English for her benefit. Her exhaustion from constantly feeling out of place leads her to leave the party abruptly, highlighting her struggle to belong.
Hilary's life is a facade of grace, masking the deep pain she feels due to her crumbling marriage. Her morning routine is interrupted by the realization that David is not in their bedroom, and her call to him goes to voicemail. Despite organizing a party at their home, Hilary receives a text from David, indicating his absence yet again. Her frustration escalates when she discovers her maid doing David's laundry, leading her to throw the clothes out the window in a fit of anger.
At the party, Hilary's friends praise her for her impeccable hosting skills, but their conversations also touch on the sensitive topic of why she and David are not trying for a baby. Hilary's decision not to have a child is met with societal pressure, and she contemplates whether having a child could save her marriage. However, her vague response to questions about their family planning conveys the complex nature of such decisions, which are often not solely a woman's choice but are influenced by societal norms.
Margaret's grief over Gus's disappearance is overwhelming, and her obsession with finding answers leads her to disregard the needs of her other children. Her fixation on a bruise on Gus's arm in a photo becomes an obsession, as she believes it could provide a crucial lead in the search for her missing son. This obsession extends to photographing her children's birthmarks, a behavior that unsettles Daisy and disrupts the family's equilibrium.
Clark's intervention to restore balance in the family comes in the form of a puppy, providing comfort and support for the children. However, Margaret's fixation on understanding Christopher's involvement in Gus's disappearance leads her to Hilary, demanding the keys to his house. Her discovery of a postcard from Thailand suggests that Christopher had been following the family, a revelation that adds another layer to the mystery.
The episode culminates in a devastating turn of events as Margaret and Clark are called upon to identify a body that matches Gus's description. The detectives' visit coincides with David seeking refuge in Mercy's apartment, as he grapples with his own tumultuous life. The episode ends on a cliffhanger, leaving viewers to wonder if the body is indeed Gus and what the implications of this discovery will be for the characters.
"Mid-Levels" is a poignant exploration of the characters' inner turmoil and the far-reaching effects of a single tragedy. The episode masterfully captures the essence of grief, isolation, and the desperate search for answers in the face of loss. As the characters' lives continue to unravel, the question of Gus's fate looms large, setting the stage for the next chapter in this gripping drama.