When I first met Hans and Greta, they seemed like the sweetest couple ever.

Both in their late seventies, they had gentle manners and warm smiles that made them instantly likable.

They moved into my apartment a year ago and quickly became ideal tenants. They paid rent on time every month, kept the place spotless, and even left thank-you notes for me.

Whenever I visited, they’d invite me in for tea, sharing wonderful stories from their past. Everything was perfect, and I couldn’t have asked for better renters.