Save lives.

Lie To Me S01E07 tells us two stories of saving life. I think it is Lie To Me's style to show us two independent stories by two different lines which interweave perfectly. One story always gives the other some hits . One is handled by Dr. Cal Lightman and Ria Torres, the other by Dr. Gillian Foster and Eli Loker. There will be a consultation where the two group will talk about both the cases, maybe not at the same time. One,lost in his/her own case, will always be enlightened by the other case, or a word by the other group.
In Cal's case, a medicine poured into the market may cause death. Who commits such a crime? The head of medicine company or the fake medice? Obviously Cal do not want to doubt his friend. "I don't know,... I don't know..." show his doubt about his friend and unwant to admit. The result turns out that his friend is clear about the drug but has an affair with the boss.
I will go back now. Tomorrow I will go on what I leave behind today. Hah.
In Foster's case, she subtly makes use of the opponent's weakness to save the boy by only a meal, a big meal with the President of U.S. worth of showing off.

At the final part, Ria tells Cal that there is something wrong with Foster's hanband. Cal tells Ria to care about her own business. Actually he believe there is something wrong. He watches the officer who is found get in a girl's car and kiss her.They are having affairs. But why does he not talk to Foster about that? Maybe he thinks that Foster can handle it well all by herself.In my opinion, Foster must have noticed something, too. She is kind from the heart, she thinks everything will be OK. So she trusts her husband,which may block her from finding her busband's true face.