Zero Days follows Jacintha “Jack” Cross, a professional penetration tester who breaks into corporate buildings for a living to expose security flaws. After a routine job goes sideways, Jack returns home to a nightmare: her husband and partner, Gabe, has been brutally killed at his computer.
As police questions tighten around her timeline—and evidence appears that paints her as the prime suspect—Jack goes on the run to prove her innocence. With no phone, no safe base, and her every move tracked, she must rely on the skills she used for paid security tests: social engineering, disguises, lockpicking, and infiltration. The deeper she digs, the clearer it becomes that Gabe didn’t die randomly—he discovered something worth killing for.