Detective Conan

The Strange Person Hunt Murder Case (1x13)

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Hiroshi gives Conan a new pair of glasses with tracking capabilities. A woman comes to Kogorou wanting to find her long lost father, they find him quite easily and soon they are re-united. The next day he's found dead, strangled. They then find another detective who was looking for the same man. They soon find out that the woman, Masami, may not be who she says she was.