The Wife's Secret World (2022)

Both are mini dramas with a dark tone in which the FL discovers the man she loves is keeping many secrets from her and everything she believes may be a lie.

Both are about artificial intelligence and have a darker tone.
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Both are about artificial intelligence.
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Both are about artificial intelligence.
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Both are about artificial intelligence.
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Both are about artificial intelligence.
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Both are about artificial intelligence.
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Both are about artificial intelligence.
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Both are about artificial intelligence.
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Both dramas are dark thriller/mysteries in which the main characters are a couple and their young daughter and (one of) the SML(s) is a newspaper reporter. Both dramas have a lot of misdirection/red-herring which keep you guessing what's happening/who the villain is, and both have common plot elements of a killer in a raincoat, a car accident, and amnesia.

Both have a similar vibe, with the FL, who is married with a young daughter, suspecting her husband and others in her life are manipulating her. She is aided by another man who has uncertain intentions of his own.