Perfect Strangers is a 2003 New Zealand film directed by Gaylene Preston and starring Sam Neill and Rachael Blake.
Melanie (Rachael Blake) is a waitress who works at an unnamed restaurant, presumably in New Zealand. One night, she meets a man (Sam Neill), they spend some time together, before Melanie asks him if he wants to go home. He says sure, and asks: "Your place or mine?" She answers with his, and they go to a dock, where his small boat is. After a short time, she passes out, and when she wakes up, they're in the middle of open ocean, with land nowhere in sight.