The Blackheath Poisonings (1993)

S01E01 Episode 1

The Collard and Vandervent families are bound by marriage and share ownership of a toy company, but their animosity is palpable. When Roger Vandervent unexpectedly falls ill, hidden affairs and long-buried scandals begin to emerge, putting their fragile alliance to the test. Secrets that have been kept under wraps threaten to unravel, forcing both families to confront their true feelings and the reality of their complicated relationships.