Building on the spillover and crossover literatures of work–family conflict and the theoretical framework of Conservation of Resources Theory (Hobfoll, 1989) we examine the effects of conflict on production deviance. Using a two-study constructive replication and extension design, we examine how partner work-to-family conflict contributes to job incumbent family-to-work conflict and subsequent engagement in production deviance. In addition, we examine the moderating role of gender on the incumbent family-to-work conflict to production deviance relationship. Study 1 of 344 job incumbents supported the positive relationship between incumbent family-to-work conflict and deviance. In addition, this was moderated by gender such that men engaged in more deviant behaviors in response to family-to-work conflict. Study 2 consisted of 190 matched job incumbents and their partners. These findings supported the mediation of partner work-to-family conflict to production deviance through incumbent family-to-work conflict. Again gender was supported using moderated mediation analysis such that men engaged in more deviant behaviors in response to family-to-work conflict. Implications for practice and future research are discussed.