Six Wakes — Mur Lafferty

On a space ship far from earth, someone is murdering the crew. And the crew's newly awakened clones will have to find their killer--before he strikes again!

Maria Arena awakens in a cloning vat streaked with drying blood. She has no memory of how she died. This is new; before, when she had awakened as a new clone, her first memory was of how she died.
Maria's vat is one of seven, each one holding the clone of a crew member of the starship Dormire, each clone waiting for its previous incarnation to die so it can awaken. And Maria isn't the only one to die recently...