A German spy carrying information that will reveal the target of Operation Overlord becomes involved with the wife of a crippled man on an isolated island off the Scottish coast while he waits to be picked up.
53:20 The wife finds the spy at her door, in need of care after his boat is shipwrecked. The next day, the spy accidentally enters the bathroom while the wife and her kid are taking a bath. She doesn't cover herself in front of him, with at least one of her tits on display, indicating that she already likes the guy.
1:01:51 While her husband sleeps, the wife talks to the spy in the living room. They kiss and have implied sex: we only get to see up to the point where he's unbuttoning her shirt.
1:15:39 The wife has sex with the spy again, but he already killed her husband at this point. They do it in the bedroom and this time we see a little action, with her naked on top and her sideboob showing.