This article contains minor spoilers.
2/5 stars
Lead cast: Park Bo-gum, Kim So-hyun, Lee Sang-yi, Oh Jung-se
Latest Nielsen rating: 8.12 per cent
Despite the promise of action and athleticism at the beginning, Good Boy featured little of either in its early stages, focusing instead on the mishaps of a misunderstood squad in the police force without ever digging into what made the lead characters tick.