Lie to Me - Season 3 (2010)

While vetting an art museum staff for security leaks prior to a major exhibition, Lightman meets a beautiful woman who entangles him in a game of cat-and-mouse.

While Dr. Lightman investigates who was responsible for a deadly coal mine explosion, the FBI questions Dr. Foster about Dr. Lightman's gambling associates.

Dr. Lightman goes all-out to expose a self-help cult leader after one of its members tries to commit suicide but quickly returns to the fold despite the protestations of her daughter.

Dr. Lightman helps a woman with early-onset Alzheimer's Disease uncover a traumatic memory from her past, and in the process discovers that there may be an "Angel of Death" working in her health care facility.

As a favor to detective Wallowski, Dr. Lightman investigates a fatal armed robbery of a barbecue restaurant owned by a man dying of cancer.

Dr. Lightman tries to help a man in a mental health facility diagnosed with schizophrenia, which causes him to go down a dangerous path that may challenge his own sanity.

Dr. Lightman matches wits with a sociopath who is part of a con game involving himself and a lawyer, who both prey on several newly-divorced women for money.

Lightman is hired to investigate three high school students responsible for a fatal traffic accident, which takes a turn for the better when he finds the heroic paramedic who was first on the scene.

A baby goes missing, and her mother accuses an unknown person of the kidnapping. When Lightman sees she's hiding something, he digs deeper and discovers a family in need of repair.

Dr. Foster works for a co-creator of a social network application who suspects one of her partners is trying to oust her. However, the client soon turns up dead, and Lightman tries to prove that her partner is responsible.