Castle (2009)

S2E2 The Double Down

On the same night, two murders occur, prompting Castle to bet Ryan and Esposito that he and Beckett will crack their case first. This sparks a frantic competition between the teams to catch their killers. However, as they zero in on potential suspects, they discover that both have solid alibis. Strange developments in each investigation eventually compel the teams to collaborate, combining their efforts to untangle the complex mysteries surrounding the murders.