diff --git a/fail-monitor/monitor.hpp b/fail-monitor/monitor.hpp
new file mode 100644
index 0000000..5aa2170
--- /dev/null
+++ b/fail-monitor/monitor.hpp
@@ -0,0 +1,113 @@
+#pragma once
+
+#include <sdbusplus/bus.hpp>
+
+namespace phosphor
+{
+namespace unit
+{
+namespace failure
+{
+
+/**
+ * @class Monitor
+ *
+ * This class will analyze a unit to see if it is in the failed
+ * state.  If it is, it will either start or stop a target unit.
+ *
+ * The use case is for running from the OnFailure directive in a
+ * unit file.  If that unit keeps failing and restarting, it will
+ * eventually exceed its rate limits and stop being restarted.
+ * This application will allow another unit to be started when that
+ * occurs.
+ */
+class Monitor
+{
+    public:
+
+        /**
+         * The valid actions - either starting or stopping a unit
+         */
+        enum class Action
+        {
+            start,
+            stop
+        };
+
+        Monitor() = delete;
+        Monitor(const Monitor&) = delete;
+        Monitor(Monitor&&) = default;
+        Monitor& operator=(const Monitor&) = delete;
+        Monitor& operator=(Monitor&&) = default;
+        ~Monitor() = default;
+
+        /**
+         * Constructor
+         *
+         * @param[in] sourceUnit - the source unit
+         * @param[in] targetUnit - the target unit
+         * @param[in] action - the action to run on the target
+         */
+        Monitor(const std::string& sourceUnit,
+                const std::string& targetUnit,
+                Action action) :
+            bus(std::move(sdbusplus::bus::new_default())),
+            source(sourceUnit),
+            target(targetUnit),
+            action(action)
+            {
+            }
+
+        /**
+         * Analyzes the source unit to check if it is in a failed state.
+         * If it is, then it runs the action on the target unit.
+         */
+        void analyze();
+
+    private:
+
+        /**
+         * Returns the dbus object path of the source unit
+         */
+        std::string getSourceUnitPath();
+
+        /**
+         * Says if the unit object passed in has an
+         * ActiveState property equal to 'failed'.
+         *
+         * @param[in] path - the unit object path to check
+         *
+         * @return - true if this unit is in the failed state
+         */
+        bool inFailedState(const std::string&& path);
+
+        /**
+         * Runs the action on the target unit.
+         */
+        void runTargetAction();
+
+        /**
+         * The dbus object
+         */
+        sdbusplus::bus::bus bus;
+
+        /**
+         * The source unit
+         */
+        const std::string source;
+
+        /**
+         * The target unit
+         */
+        const std::string target;
+
+        /**
+         * The action to run on the target if the source
+         * unit is in failed state.
+         */
+        const Action action;
+};
+
+}
+}
+}