Late at night in the mathematics department, there is a door that is ajar and a whiteboard filled with Bourbaki symbols.
One missing professor, three missing students, seven nodes scattered around the campus.
Fermat's last theorem, Euler's formula, Gödel's incompleteness theorem... Every code left by the murderer is a mathematical puzzle.
"The solution to this equation is you."
Mathematics is the best love story, and you are the only proof.
Purpose: Love is the only axiom that cannot be proven but exists.