There's nothing special about this movie. There's also nothing wrong. The acting is decent. Almost the entire film takes place in a submersible. The problem is, there's nothing really original. It's been done. You know what's going to happen from step to step. Also, I watched it on Shudder so I was expecting horror. Apparently I don't understand Shudder yet.

When you don't care whether the characters live or die, you know you have a bad film on your hands. This waterlogged 'thriller' is boring to watch.