S1·E4 The Eye of Apollo

Aging, blind dowager Miss Dorothy Ammersly, an advocate of equality for women in the workplace, has consigned her fortune to her niece, successful businesswoman Pauline Stacey. Unfortunately, Pauline is not as astute on judging character and has fallen under the spell of ex-convict Kalon, who has reinvented himself as the high priest to Apollo, the sun god. Pauline makes out her will, ignoring her sister and naming him as her sole heir, before falling to her death. Having been in close proximity, Kalon becomes a suspect, but he has an impeccable alibi provided by one Father Brown.