A woman known as Dorothea Puente runs a boarding house for those less fortunate, but her seeming benevolence belies motives that are much darker.

When college student Maribel Ramos goes missing, detectives turn their focus to her roommate, K.C. Joy — the last person to have seen her alive.

Charismatic athlete Youssef Khater commits fraud across several countries — a series of schemes culminating in violent attacks on multiple people.

Former roommates of "serial squatter" Jamison Bachman discuss how this dark, dangerous man conned his way into their homes and then refused to leave.

Bachman's old roommates recount the steps they took to try to force him from their homes, his harsh retaliations, and the painful saga's tragic end.