Dark Harbor (1999)

Plot

Amid a torrential downpour, a quarreling couple races towards the final ferry to their island getaway. Their plans derail when they spot a crumpled figure by the roadside. After a heated debate, they decide to stop and discover a young man, injured and disoriented. Rejecting the idea of calling the authorities, they attempt to assist him, but this choice means they'll miss the ferry. What unfolds is a gripping thriller, steeped in dark sexual tension and hidden agendas that will challenge their relationship and test their moral boundaries.