For nearly a year, my neighbor Denise and I had been locked in an increasingly ugly feud.

Then one morning, she showed up at my front door in a bathrobe, shaking with fury and screaming that I had destroyed her property.

What she didn’t know was that the security cameras I had installed only days earlier were about to reveal something neither of us expected.

My name is Christine.

Before everything went bad, Denise and I weren’t friends, but we were perfectly civil neighbors.

We waved when we saw each other by the mailbox.

We made small talk about the weather.

Once, when a delivery driver accidentally left one of her packages on my porch, I walked it over to her without giving it a second thought.

Then her dog discovered my flower beds.

The first time, I assumed it was an accident.

I came home from work and found several flowers torn from the ground, dirt scattered across the walkway, and paw prints all through the mulch.