4 episodes match Gaslight

Harry struggles to keep Alma under control. Doris is pushed past her limits. (imdb)

A powerful Alpha seems to have lost his mind and is attacking people at a hospital forcing, but as the team tracks him down they each begin to lose touch with reality. (imdb)

When a widowed single mother claims her dead husband is attempting to kill her from beyond the grave, McCall and the team help uncover the truth. Trish, a recently widowed gallerist who rekindles a romantic relationship with Aunt Vi. (imdb)

Alexa and Madison's investigations into the death of a music producer is complicated by the arrival at Alexa's door of a young girl with some very big news. (imdb)