After a traumatic break-in, Kate is sent next door for protection. Her protector isn't a bodyguard, but Dylan—her father’s notoriously dangerous and reclusive neighbor. Their arrangement is simple: he keeps her safe, and she stays out of his way. But the forced proximity ignites a reckless, undeniable attraction. As the danger circling Kate draws nearer, they agree on one essential rule to survive: don't cross the line. It’s the one rule they’re both destined to break.