The title Trigger tells you all you need to know about this book. Well, the important things, anyway. I would assume that the author, C.G. Moore, took some of their own experiences and gave them to their main characters. The feelings of loss, guilt, shame, wonder and the lack of memory.
There are triggers of all types are in this book: First for the reader (such as, but not limited to: a rape, toxic relationships) and second for the character (they are trying to trigger memories; and their memories are being triggered). Sometimes the story is a lot, but most of the time it is handled respectfully and does not glorify, hide or minimize the events. The ending was slightly rushed for my personal tastes and I would have liked an event to have happened differently (or not at all), but I still feel it was a worthwhile read on a difficult subject. I cannot say this book was enjoyable, due to the content, but my reading time was well used.
The main character, Jay, awakes bruised and no memory of how (or why) this even happened. Going back through absent and blurry memories, going forward trying to connect with people who might have answers, the truth of horrific events unfolds. We slowly learn of things, we learn the emotions of grief, we see well meaning friends, friends who have gone through it and much more. Overall, things are done well, though the prose poetry format does not always allow for serious amounts of details. Yet, the format is also good as it shows a lot in a few words.