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What If...

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Detective Abigail Cartwright has earned a reputation for solving weird homicide cases, but, when she's called to a lecture hall at the local university, she faces the oddest one yet. During a What If ... lecture, run by soon-to-be-retired Professor Gertrude Milligan, two students died. Without any signs of how or why.

Confused, Abby digs in to solve the mystery, only to find several old cases connect—or do they? Were the two students murdered, or was something else going on?

Professor Leon We...