Death in the ward / The informant

A friend of Paula's gives birth in the hospital, but later dies because she is not properly assisted. The police investigate without results. Paula continues to investigate secretly and thanks to a testimony she will be able to discover the truth. Linda has an affair with a married man. The lover, instead of leaving his wife, decides to kill Linda and has the gardener of the building accused. A witness informs the police via email so as not to reveal his identity.