Columbo (1971)

S3E2 Any Old Port in a Storm

In a desperate bid to save his family's legacy, a passionate wine enthusiast murders his half-brother. Fearing that the brother's decision to sell the family vineyard to a corporate buyer will lead to its downfall, he takes drastic action to eliminate the threat. His motivation stems from the need to settle his mounting gambling debts, pushing him to commit an unthinkable crime to protect what he believes is rightfully his.