The book features female characters mostly. Four of them invented time travel, one of them is a grand-child of the inventors who mentally broke down after time travelling too long. The story jumps back and forth between years and is basically a murder mystery.
I found the plot original, witty at times. Don’t expect a realistic scenario when it comes to time travel, as characters meet each other older/younger selves which doesn’t interfere with actual course of events. The end was a bit confusing, as if the author felt a bit rushed to make an end to the story. Nevertheless, I really enjoyed reading it. If only to immerse oneself in a book where female characters are portrayed as scientists and inventors. Some kind, others not so kind. Just like in real life.