"Fool Me Once" episode 3 delves deeper into the entangled mysteries surrounding Maya's life. The episode commences with Maya questioning Judith Burkett about Caroline’s mental health and Detective Kierce's alleged payments. Judith dismisses Caroline as overly sensitive, and Neil demands Maya leave, denying any financial connection with Kierce. Meanwhile, Detective Kierce, grappling with health issues, undergoes medical tests.

In parallel, Alexa and Dan investigate their mother Claire's former boyfriend, Alexander, suspecting his involvement in her death. However, their father Eddie’s grief complicates their quest for truth. Their sleuthing reveals a surprising twist – Claire was pregnant before they were born.

Detectives Kierce and Marty focus on Eddie as a suspect in Joe Burkett’s murder, doubting his alibi. Simultaneously, Maya seeks insights into Claire’s secretive life, learning from Eva about Claire's enigmatic behavior and a mysterious caller. Frustrated, Maya confronts Eddie, retrieves Claire's burner phone, and uncovers calls to an arcade club.

As the episode unfolds, Kierce and Marty chase leads on the murder weapon, suspecting a link between Claire and Joe's deaths. Meanwhile, Maya’s surveillance of a red car she suspects is tailing her leads to an encounter with Corey, an individual linked to her sister Claire. Corey suggests a conspiracy involving the Burkett family and a mysterious man named Tommy Dark, hinting at a secret that could link the murders of Joe and Claire.

Maya’s investigation takes her to Tommy’s company and residence, but she finds more questions than answers. Shane, Maya’s friend, uncovers Detective Kierce’s troubled past and confronts him, only to be rebuffed with concerns about Maya’s mental state.

The episode takes another turn when Caroline discovers Joe's clothes, further complicating the mystery. Simultaneously, Maya, after checking Corey’s website, faces a chilling moment as she finds her daughter Lily missing from her bed, leading to her arming herself with a hidden Glock.

As the episode ends, the audience is left with mounting suspense and unanswered questions. Where is Lily, and who has infiltrated Maya’s house? What is the significance of the secret Glock, and does it implicate Maya in her husband’s murder? The web of lies and secrets continues to unravel, leaving viewers eager for the next chapter in this captivating mystery.