Twins - S1.E6

When two students in Declan's anthropology class exhibit uncanny similarities, Declan becomes curious when both adopted young men turn out to share the same birth date, the same mannerisms, tastes, and test answers, but a blood test determines that they aren't related. When one of them becomes ill, the mystery of what brought them together intensifies. Meanwhile, Declan and Peggy discover they share a coincidence as well.