In episode 4 of "Fool Me Once," tensions escalate as Maya delves deeper into the web of mysteries surrounding her life. The episode kicks off with a tense moment at Maya's house, where she discovers Shane, not an intruder, trying to console her. Despite Shane's suggestion to seek therapy, Maya remains adamant that she's coping well. She learns from Shane about Tommy, a marine connected to her late brother-in-law Andrew's death, fueling her suspicions about a cover-up.

Shane also reports that Detective Kierce appears clean but questions Maya about the eerie footage of her supposedly deceased husband, Joe, captured on a nanny camera. Maya, grappling with the possibility of Joe faking his death, considers other sinister scenarios at play.

Meanwhile, Alexa and Dan, pursuing leads about their mother Claire's past, confront Alexander, an old flame of Claire's. Their interaction reveals Alexander's ignorance of Claire's pregnancy, eliminating him as a suspect in her death.

Detective Kierce, battling health concerns, follows Phil, suspecting his connection to Joe's murder. His partner Marty, uncovering Kierce's lies about a car accident, grows skeptical of Kierce's integrity.

Maya, after a disconcerting therapy session, is approached by Tommy's worried wife, who uncovers questionable payments from the Burkett family to Tommy. This revelation deepens the mystery, especially as Tommy has been missing for weeks.

Claire's children, exploring their mother's past, discover a half-sibling through a DNA tracing app, leading Eddie to confront Alexander in a fit of rage.

The episode also reveals Maya's haunted past in the army, where she accidentally caused civilian casualties, linking her trauma to Corey, a whistleblower. Corey's involvement raises questions about his intentions and his knowledge of the Burkett family's secrets.

Shane's dubious actions, planting a tracker on Maya's car, cast a shadow over his motives, while Kierce and Marty's investigation points to Eddie's deceptive alibi on the night of Joe's murder.

As the episode concludes, the viewers are left with more questions than answers. Maya's complex web of relationships and the murky past of those around her create a suspenseful narrative, leaving audiences eagerly anticipating the next developments in this intriguing mystery series.