A cruise on the Pacific goes all wrong, the ship sinks, and there are
only 3 Survivors; Damian, Darren and Deirdre.

They manage to swim to a small island and they lived there for a couple
of years doing what's natural for men and women to do.

After several years of casual sex, all the time, Deirdre felt absolutely
horrible about what she was doing.
She felt having sex with both Damian and Darren was so bad that she
killed herself.

It was tragic but Damian and Darren managed to get through it and, after
a while, nature once more took its inevitable course.

Well, a couple more years went by and Damian and Darren began to feel
absolutely horrible about what they were doing.

So they buried Deirdre.