In the riveting fourth episode of Harlan Coben's "Missing You" on Netflix, titled "Don't You Forget About Me," Detective Kat Donovan (Rosalind Eleazar) finds herself in a race against time as she uncovers layer upon layer of deception and danger. The episode picks up where the previous one left off, with the shocking revelation that Aqua (Mary Malone), Kat's trusted friend, is the one who attacked Brendan (Oscar Kennedy). This twist sets the stage for an episode filled with intense confrontations, unexpected alliances, and a deepening mystery.
The episode opens with a flashback to Aqua and Josh (Ashley Walters) planning his proposal to Kat, a poignant moment that contrasts sharply with the present-day confrontation in the police interview room. Aqua's explanation—that she was trying to protect Josh, just as he once protected her—confuses Kat, hinting at a deeper connection between Aqua and Josh than she had previously known. As Aqua has a panic attack, Kat's empathy prevails, and she offers comfort instead of pressing for more answers.
Kat's search for the truth leads her to Ashkan Chuback (Mandeep Dhillon), a financial advisor who has raised a suspicious activity report about the Swiss bank account into which Dana (Lia Burke) deposited £250,000. The revelation that Rishi (Rudi Dharmalingam) also sent money to the same account links the two disappearances and deepens the intrigue. Ashkan's suspicion that Rishi's large transaction was part of a scam, involving an online cam girl named Vanessa, adds another piece to the puzzle.
As Kat and Charlie (Charlie Hamblett) delve deeper into the scam, they discover that both Rishi and Dana were targeted using stolen identities on the dating app Medlody Cupid. This realization that their photos were used in a catfish scheme shifts the focus to the app and its potential connection to the kidnappings.
Kat's determination to find Josh intensifies when she discovers articles written by him under a pseudonym. With Stacey's (Jessica Plummer) help, they track down a PO Box registered to "Reggie Cross," a new identity assumed by Josh. The journey to find him leads Kat to a remote address in the woods, where she is confronted by a man who refuses to give her any information about Josh.
In a thrilling turn of events, Kat is captured by the mysterious man who has been following her and taken to a portrait gallery where she finally comes face to face with Calligan (James Nesbitt). Calligan's revelation that he did not order Kat's father's murder and his suggestion that a police officer may have been involved in the cover-up adds a new dimension to the case. His agreement to help Kat find Parker, a name linked to her father's affair, offers a glimmer of hope in the midst of the chaos.
Meanwhile, Dana's desperate attempt to escape from her captors at the farm and the hunt that ensues heighten the stakes, as does Titus's (Steve Pemberton) decision to have her "culled" once they have extracted all they can from her. The episode ends with a tense standoff between Kat and Josh on the beach, after 11 years apart, with the truth of his disappearance still shrouded in mystery.
"Don't You Forget About Me" is a gripping installment of "Missing You" that keeps viewers guessing and on the edge of their seats. The episode masterfully weaves together personal betrayals, criminal conspiracies, and emotional confrontations, all while maintaining a relentless pace that reflects the urgency of Kat's quest for the truth. As the penultimate episode, it sets the stage for a climactic finale that promises to be as shocking as it is revealing.