The episode begins with the murder of an ice cream truck driver named Anton, who was caught in the middle of a high-stakes conspiracy.

⭐ While the procedural plot regarding Russian mobsters is somewhat cliché, the episode succeeds as a character study of Castle’s eternal "inner child." Castle Season 7 Episode 4 Review: Child's Play - TV Fanatic

Reviewers generally viewed the episode as a "filler" but praised its lighthearted moments.

The chemistry between Castle and the children was cited as the "true joy" of the hour.

Castle uses creative tactics, such as asking the kids to write stories to see if any details of the crime emerge.

A young boy named Jason eventually provides the breakthrough, revealing that his sister was Anton’s girlfriend and the real target of the killer's interest. ⚖️ Critical Reception